FERRITECORES
STSTAMP
ST
STAMP
1. B-H curves
If an alternating magnetic field is applied to a soft magnetic material, the magnetic induction(B) changes with the
magnetic field(H)as shown in Fig. 1
The hysteresis loop, describing the relation between H and B, is called the magnetization curve.
Fig. 1
1.1 Initial permeability
The initial permeability � defines the relative permeability at low excitation level.i
According to IEC 60401 test condition : f< 10 KHz, B < 0.25mT, 25
H
Bi ����
0
1�� where � : permeability of vacuum0
1.2 Saturation magnetization, Bs
At high field strength, the induction flattens out at a value, called the saturation flux density, B .S
1.3 Residual flux density, Br
Residual flux density B is a magnetic flux density remaining in material when the magnetic field strength is decreased to r
zero after being magnetized to its saturation point.
1.4 Coercive field strength, Hc
The residual flux reduces to zero at a certain reverse field strength which is referred to a corecivity H .C
B
Bs
Br
H
Hc
B-H LOOP
� I
7
General Definitions
2. PermeabilityPermeability is defined as the ratio of flux density to the magnetic field stength.
This parameter can be measured under the different sets of conditions.
2.1 Initial permeability The initial permeability � is defined as the relative permeability at low excitation level and constitutes the most i
important means for the comparison of soft magnetic materials.
2.2 Effective permeabilityIf an air gap is introduced in a closed magnetic circuit, magnetic induction becomes more difficult.As a result, the flux density for a given magnetic field strength becomes lower.Effective permeability depends on the initial permeability of the soft magnetic material, the size of air gap and the core shape.The effective permeability is determined by the formula below,�
�A
l
N
Le
20
1��
core factor
:
�L : effective inductance(air gap)where
A
l
2.3 Complex permeabilityTo enable a better comparison of ferrite materials and their frequency characteristics at a very low field strength it is useful to introduce � as a complex operator.
where � ' : real part of the series complex permeabilitys
� ' ': imaginary part of the series complex permeabilitys
Fig. 2
� = � ' - j � ' 's s
110
210
310
410
110
210
310
410
��
� �
Frequency(kHz)
General Definitions
8
2.4 Reversible permeability, � rev
In order to measure the reversible permeability � , a small measuring alternating field is superimposed on a DC field.rev
In this case � is heavily dependent on H , core geometry and temperaturerev
� of gapped core, � , can be calculated from toroid corerev rev
-1
)(1
)(
�������� �� ��� rev BBrev ie ��� 11�
Where : permeability with superimposed dc field
((
2.5 Amplitude permeability, � a
In the relationship between higher field strength and flux densities, the permeability at high induction level is called amplitude permeability, � .a
At relatively low induction, � increases with H but as the magnetization reaches saturation, � decreases with H.a a
Such a curve is shown in Fig. 3
3 Magnetic core shape characteristics
3.1 Form Factor, C1
Form factor, C is defined as the sum of l /A value of the various sections divided with the magnetic path lines.1 e e
Where l = magnetic path length of each section.e
A = magnetic path area of each section.e
Form factor, C =1
��
A
l
Ae
le�
Fig. 3
0 100 200 300 400 500
0
1000
2000
3000
4000
5000
6000
25
100
� rev � � ��
HB
( (lim H 0� � rev
General Definitions
9
3.2 Permeance factor, cPermeance factor, c is defined as the formula below,
-7Where � = permeability of vacuum = 4 10 H/m0
This factor is useful for the calculation of A valuesL
A = c � L
Where � : permeability of material
�
3.3 Inductance factor, A L
Inductance factor, A , is defined as the formula below, L
Where L : Inductance of the coil with magnetic coreN : Number of turns wound around magnetic core
4 Loss expressions in the small-signal range
4.1 Loss angle tangent : tan Loss augle tangent, tan , is defind as the formula below,
'
''tan ��� � Where : Loss angle = phase angle between B and H
The magnetic losses can be splitted into three component as below Fig. 41. Hysteresis losses2. Eddy current losses3. Residual lossesThis gives the formula
rfh ���� tantantantan ���
r
h
�
B
�
B
�
f
B
Where tan = hysteresis loss angle tangenth
Where tan = eddy currents loss angle tangent f
Where tan = residual loss angle tangentr
� 0
C1
c =
L
N2
A =L = c �
Fig. 4
General Definitions
10
General Definitions
11
4-2 Relative loss factor, tan /This factor is defined as the loss angle tangent divided by permeability,Relative loss factor = tan /�The loss angle tangent, tan , is reduced by an air gap in proportion to the ratio of permeabilites before and after airgap presence,
�e
i
e �� �� �� tantan
Where � and tan : permeability and loss angle tangent without an air-gap. and tan : permeability and loss angle tangent with an air-gape
Therefore, the relative loss factor, tan /� does not depend on air-gap size, when the air-gap is small.
e�
4.3 Quality factor, QThe quality factor Q, is defined as the reciprocal of loss angle tangent .
Where, � = = angular velocity R= loss resistance of coil with magnetic core
f�2
4.4 Hysteresis material constant, � B
This constant is defined as the formula below,
Where tan = hysteresis loss angle tangenth
= tan B 2- tan B1
Where tan B 1= loss tangent when the magnetic induction is B ,1
t an B 2= loss tangent when the magnetic induction is B ,2
According to IEC 60401 for � value greater than 500, B = 1.5mT and B = 3mT, frequency of 10KHz and e 1 2
temperature of 25
Q=� L
RL
=reactance
resistance =1
tan�
=tan� h� B
� B
B� =B2 B1-
i
i
i
i
5. Loss expressions in the high excitation range
5.1 Power lossFor high excitation application, such as power transformer design in Switching Mode Power Supplies (SMPS), the energy dissipation(losses) is expressed in terms of power loss. Power losses are function not only of ferrite material but alsoinduction level(B), operating frequency(F) and temperature(T).Power loss can be divided into three components.
6. Other characteristics
6.1 Total harmonic distortion, THDIn modern telecommunication applications like ISDN and DSL, ferrite-cored pulse and wideband transformers play an important role.These transformers provide impedance matching and safe isolation in modems placed between networks and telephones set or computers.Total harmonic distortion, THD, is defined as the formula below.This factor indicates the degree of signal wave distortion for the telecommunication application.The THD of ferrite component should be low under operating conditions.
THD is a function of flux density (B), frequency (f) and temperatures (T).To evaluate material quality with respect to THD , V1 and V3 should be measured with audio analyzer ( tested by ATS-1 equipment)
a
V
V �/log203
1 ������THD =
where V = amplitude of first harmonic wave1
V = amplitude of third harmonic wave3
THD increases when the flux density level rises.
THD can be explained by the fact that pores and impurities inside the material act as pinning points for the domain wall movement such an irreversible jump makes an distortion.
SecondTHD is a function of both the intrinsic properties of ferrite material such as permeability and hysteresis loss coefficient, and extrinsic properties such as the condition of matching surfaces.Bad planarity or grinding grooves will cause magnetic flux concentrations, which increase the distortion level, especially when the surfaces are directly in contact with each others.
At first
6.2 Curie temperature, TC
Curie temperature is the point at which ferrite lose there ferromagnetic character, due to thermal vibration.
PL= P + P + PHysteresis Eddy current Residual
General Definitions
12
13
6.3 Density, dThe density is defined as the weight per unit volume.
where W : weight of the magnetic core (g)3 V : volume of the magnetic core (cm )
6.4 Electrical resistivity,The resistivity is defined by the formula below,
Where A : area of current path : length of current path
-3Ferrite is a semiconductor with a DC resistivity in the crystallites of the order of 10 � m for a MnZn ferrite.Since there is an isolation layer between the crystals, the bulk resistivity is much higher: 0.1� m to 10� m for MnZn ferriteThis resistivity depends on the temperature and measuring frequency.
6.5 Disaccommodation, DFWhen a soft magnetic material is given a magnetic or thermal disturbance, the permeability rises suddenly.The disacommodation factor makes it possible to estimates the change of permeability for a long time.IEC has defined a disacommodation coefficient as follows,
6.6 Relative Temperature coefficient, � F
The permeability of ferrite is a function of temperature.It generally increase with temperature to maximum value and then drops sharply to lose their ferromagnetic properties.Temperature coefficient of a ferrite core with air-gap decrease at the same rate as does the initial permeability.
d=
wv
� =
A
� F =
� -�i2 i1� i1
Where � : permeability at time ti1 1
� : permeability at time t and t � ti2 2 2 1
1T - T2 1
oWhere � : initial permeability � at T =25 C i1 i 1
� : initial permeability � associated with the temperature Ti2 i 2
RP R : parallel resistanceP
DF =
� -�i1 i2� i1(logt - )2 logt1
General Definitions
Material survey
Main application area Frequency range Specific application Ferrite material Initial permeability
B max (mT) Available core shapes
up to 5MHz
HM2A 5500 410
HM3A 7000 450
Broadband transformers (e.g. antenna
transformer for MW,SW,VHF,TV)
ISDN transformers, Digital data
transformers (xDSL), Current-compensated
interference, Suppression Chokes
up to 3MHz
Common mode filter,
Current- compensated chokes
Toroid cores,ESQ, USQ,
Gapped Toroid
3500 470HM1A
HM5A 10000 435ISDN transformers impedance matching
transformers
Toroid, EP, RM,Gapped Toroid
3500 525BM30
PM5 2200 480
PM7 2400 480
PM11 2400 520
PM9 3000 500
Flyback transformer,Power transformer,
Chokes,Back light inverter
up to 200 KHz
E, EER, ETD, UTV, PM, Toroid,
EP, RM, UU,Gapped Toroid
3200 530PM12
High voltage transformers,
Power conversionLow loss
FM4 2000 490
FM5 1600 495
up to 500KHz
0.3 1 MHz
Transformers for forward and push - pull converters
Transformers for DC-DC converters,
particularly resonance converters
High frequency power conversion, General purpose
transformer
EFD, EPC, EER,RM low profile, Planar
The new material in 2004 for PDP, LCD, automobiles application
14
BM14 1600 530
15
Material survey
2322 2524
16
Material survey
14
10
140
25%25
32302826 34
Material survey
* NiZn Power Material
NM8 NM13
80020%
130020%
H=1194A/m, 25 , f=10kHz
H=1194A/m, 100 , f=10kHz
410
300
360
240
r
H=1194A/m, 25 , f=10kHz
H=1194A/m, 100 , f=10kHz
200
150
170
100
Coercive fieldstrength
19
7
18
9
420
280
410
360
>160
35.1 10
Relative resistivity >10 >10
17
Material survey
36 38
18
Material survey
BM14
160025%
530
440
14
6
100
>290
900
400
6
4900
40 41
19
PERMEABILITY(� ) vs. FREQUENCYi
4500
4000
3500
3000
2500
2000
1500
1000
0
�' �"
1 10 100 1000 10000
5000
� '
� "
PERMEABILITY(� ) vs. TEMPERATUREi
Initi
al P
erm
ea
bili
ty(�) i
HM1A MATERIAL
22
1 10 100 1000 10000
1E-02
1E-03
1E-04
1E-05
1E-06
tan
�/�'
RELATIVE LOSS FACTOR(tan /� )ivs. FREQUENCY
600
500
400
300
200
100
Flu
x d
en
sity
(mT
)
0
0 20 40 60 80 100 120
FLUX DENSITY(B ) at 1200 A/m S
vs. TEMPERATURE
oTemperature( C)Frequency(kHz)
Frequency(kHz) oTemperature( C)
Symbol
BS
HC
Brms
TC
fC�d
Unit
-
mT
A/m
mT
MHz� m3kg/m
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
3500 25%
470
5
120
>180
1.5
2
4750
� i
Material Property
HM2A MATERIAL
Symbol
tan /� i
Unit
-
mT
A/m
mT
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
f=10kHz
-
-
Value
5500 25%
430
6
65
>140
<5
1
4900
-610 / 20 60 0.2~0.7
� i
BS
HC
Brms
�d
� m3kg/m
TC
� F
-610
PERMEABILITY(� ) vs. FREQUENCYi
7000
6000
5000
4000
3000
2000
1000
1 10 100 1000 10000
�' �"
� ' � "
PERMEABILITY(� ) vs. TEMPERATUREi
Initi
al P
erm
ea
bili
ty(�) i
20000
16000
12000
8000
4000
00 20 40 60 80 100 120 140 160
RELATIVE LOSS FACTOR(tan /� )ivs. FREQUENCY
1.0E+00
1.0E-01
1.0E-02
1.0E-03
1.0E-04
1.0E-05
1.0E-06
tan
�/�'
1 10 100 1000
FLUX DENSITY(B ) at 1200 A/m S
vs. TEMPERATURE
500
400
300
200
100
00 20 40 60 80 100 120
Flu
x d
en
sity
(mT
)
23
oTemperature( C)Frequency(kHz)
Frequency(kHz) oTemperature( C)
Material Property
HM3A MATERIAL
Symbol Unit
-
mT
A/m
mT
-610
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
f=10kHz
-
-
Value
7000 25%
430
6
85
>135
<3
0.5
4900
20 60 -0.1~0-610 /
tan /� i
� i
BS
HC
Brms
�d
TC
� m3kg/m
� F
PERMEABILITY(� ) vs. FREQUENCYi
� '
� "
10000
8000
6000
4000
2000
0
�' �"
1 10 100 1000 10000
PERMEABILITY(� ) vs. TEMPERATUREi
Initi
al P
erm
ea
bili
ty(�) i
20000
16000
12000
8000
4000
0
-20 20 40 60 80 100 120 140 1600
RELATIVE LOSS FACTOR(tan /� )ivs. FREQUENCY
tan
�/�'
10 100 1000 10000
1.0E-01
1.0E-02
1.0E-03
1.0E-04
1.0E-05
1.0E-06
FLUX DENSITY(B ) at 1200 A/m S
vs. TEMPERATURE
500
400
300
200
100
00 20 40 60 80 100 120
Flu
x d
en
sity
(mT
)
24
oTemperature( C)Frequency(kHz)
Frequency(kHz) oTemperature( C)
Material Property
HM5A MATERIAL
Symbol Unit
-
mT
A/m
mT
-610
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
f=10kHz
-
-
Value
10000 30%
410
3
80
>115
<6.0
0.13
4900
-610 / 20 60 -0.15~1.0
tan /� i
� i
BS
HC
Brms
�d
TC
� m
3kg/m
� F
PERMEABILITY(� ) vs. FREQUENCYi
12000
�' �"
10000
8000
6000
4000
2000
0
1 10 100 1000 10000
� '
� "
RELATIVE LOSS FACTOR(tan /� )ivs. FREQUENCY
1.0E+00
1.0E-01
1.0E-02
1.0E-03
1.0E-04
1.0E-05
1.0E-06
tan
�/�'
1 10 100 100001000
FLUX DENSITY(B ) at 1200 A/m S
vs. TEMPERATURE
0 20 40 60 80 100 120
500
400
300
200
100
0
Flu
x d
en
sity
(mT
)
PERMEABILITY(� ) vs. TEMPERATUREi
Initi
al P
erm
ea
bili
ty(�) i 25000
20000
15000
10000
5000
0
30000
35000
-20 20 40 60 80 100 120 140 1600
25
oTemperature( C)Frequency(kHz)
Frequency(kHz) oTemperature( C)
Material Property
PM5 MATERIAL
Symbol Unit
-
mT
A/m
mT
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
2200 25%
480
12
200
>230
1.5
6
4800
100 /200mT, 25kHz 780
H=1200(A/m), 100 , f=10kHz 390
100 , f=10kHz 10
100 /200mT, 100kHz 500
3mW/cm
Br
TC
fC
d
PL
� i
BS
HC
� � m
3kg/mIn
itia
l Pe
rme
ab
ility
(�) i6000
5000
4000
3000
2000
1000
0
50 1000 150 200 250 300
PERMEABILITY(� ) vs. TEMPERATUREi
�' �"
10000
1000
100
10
10 100 1000 10000
� '
� "
PERMEABILITY(� ) vs. FREQUENCYi
3P
ow
er
loss
(mW
/cm
)
POWER LOSSES(P ) vs.L
TEMPERATURE at 100mT210
180
150
120
60
30
90
0
20 40 60 80 100 120
100kHz
50kHz
25kHzAm
plit
ud
e P
erm
ea
bili
ty (
�) a
6000
5000
4000
3000
2000
1000
0
0 100 200 300 400 500
PERMEABILITY(� ) vs.a
FLUX DENSITY (B)
25oCo100 C
26
oTemperature( C)Frequency(kHz)
Flux density(mT) oTemperature( C)
Material Property
PM5 MATERIAL3
Po
we
r lo
ss(m
W/c
m)
900
800
700
600
500
400
300
200
100
020 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
3P
ow
er
loss
(mW
/cm
)
10000
1000
100
10
1
1 10 100 1000
100mT
o200mT(at 100 C)
3P
ow
er
loss
(mW
/cm
)
Frequency(kHz)
10000
1000
100
10
1
1 10 100 1000
100mT
o200mT(at 25 C)
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20 40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT
POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
27
Frequency(kHz) oTemperature( C)
PM7 MATERIAL
Symbol Unit
-
mT
A/m
mT
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
2400 25%
480
13
140
>210
1.5
7
4800
100 /200mT, 25kHz 700
H=1200(A/m), 100 , f=10kHz 390
100 , f=10kHz 10
100 /200mT, 100kHz 410
3mW/cm
Br
TC
fC
d
PL
� i
BS
HC
� � m
3kg/m
� '
� "
10000
�' �"
1000
100
10
10 100 1000 10000
0 100 200 300 400 500
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
6000
5000
4000
3000
2000
1000
0
25oC
o100 C
Initi
al P
erm
ea
bili
ty(�) i
6000
5000
4000
3000
2000
1000
0
50 1000 150 200 250
210
180
150
120
60
3P
ow
er
loss
(mW
/cm
)
30
90
0
20 40 60 80 100 120
100kHz
50kHz
25kHz
PERMEABILITY(� ) vs. FREQUENCYi PERMEABILITY(� ) vs. TEMPERATUREi
PERMEABILITY(� ) vs.a
FLUX DENSITY (B)
POWER LOSSES(P ) vs.L
TEMPERATURE at 100mT
28
oTemperature( C)Frequency(kHz)
Flux density(mT) oTemperature( C)
Material Property
29
PM7 MATERIAL3
Po
we
r lo
ss(m
W/c
m)
900
800
700
600
500
400
300
200
100
020 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
) 1000
100
10
1
1 10 100 1000
100mT
o200mT(at 100 C)
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
1
Frequency(kHz)
10 100 1000
100mT
o200mT(at 25 C)
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20 40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
Frequency(kHz) oTemperature( C)
PM9 MATERIAL
Symbol Unit
-
mT
A/m
mT
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
3000 25%
500
10
120
>210
1.6
7
4850
3mW/cm100 /200mT, 25kHz 500
H=1200(A/m), 100 , f=10kHz 390
100 , f=10kHz 8
100 /200mT, 100kHz 385
Br
TC
fC
d
PL
� i
BS
HC
� � m
3kg/mIn
itia
l Pe
rme
ab
ility
(�) i6000
5000
4000
3000
2000
1000
0
50 1000 150 200 250
PERMEABILITY(� ) vs. TEMPERATUREi
Am
plit
ud
e P
erm
ea
bili
ty (
�) a 6000
5000
4000
3000
2000
1000
0
7000
0 100 200 300 400 500
Flux density(mT)
PERMEABILITY(� ) vs.a
FLUX DENSITY (B)
25oC
o100 C
10000
�' �" 1000
100
10
10 100 1000 10000
� '
� "
PERMEABILITY(� ) vs. FREQUENCYi
80
3P
ow
er
loss
(mW
/cm
)
20
0
60
40
100
20 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
POWER LOSSES(P ) vs.L
TEMPERATURE at 100mT
30
oTemperature( C)Frequency(kHz)
Material Property
31
PM9 MATERIAL
20 40 60 80 100 120
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
3P
ow
er
loss
(mW
/cm
)
600
500
400
300
200
100
0
20 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
) 1000
100
10
1
1
Frequency(kHz)
10 100 1000
100mT
o200mT(at 25 C)
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
1 10 100 1000
100mT
o200mT(at 100 C)
Frequency(kHz) oTemperature( C)
32
PM11 MATERIAL
Symbol Unit
-
mT
A/m
mT
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
2400 25%
520
16
150
>230
1.8
7
4850
100 /200mT, 25kHz 570
H=1200(A/m), 100 , f=10kHz 420
100 , f=10kHz 9
100 /200mT, 100kHz 300
3mW/cm
Br
TC
fC
d
PL
� i
BS
HC
� � m3kg/m
10000
�' �" 1000
100
10
10 100 1000 10000
Frequency(kHz)
0 100 200 300 400 500
Flux density(mT)
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
6000
5000
4000
3000
2000
1000
0
25oCo100 C
Initi
al P
erm
ea
bili
ty(�) i
5000
4000
3000
2000
1000
0
oTemperature( C)
50 1000 150 200 250
80
3P
ow
er
loss
(mW
/cm
)
20
0
60
40
100
120
140
20 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
� '
� "
PERMEABILITY(� ) vs. FREQUENCYi PERMEABILITY(� ) vs. TEMPERATUREi
PERMEABILITY(� ) vs.a
FLUX DENSITY (B)
POWER LOSSES(P ) vs.L
TEMPERATURE at 100mT
Material Property
33
PM11 MATERIAL
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20
oTemperature( C)
40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT
POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
3P
ow
er
loss
(mW
/cm
)
700
500
400
300
200
100
0
600
20 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
) 1000
100
10
-10
1
1
Frequency(kHz)
10 100 1000
100mT
o200mT(at 25 C)
50mT
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-10
1
Frequency(kHz)
10 100 1000
100mT
o200mT(at 100 C)
50mT
34
Material Property
Symbol Unit Condition Value
PERMEABILITY(� ) vs. TEMPERATUREi PERMEABILITY(� ) vs. FREQUENCYi
14
140
35
PM12 MATERIAL
FM4 MATERIAL
Symbol Unit
-
mT
A/m
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
-
25
-
Value
2000 25%
490
15
>210
2
7
4570
400 /50mT, 25kHz 140
H=1200(A/m), 100 , f=10kHz 370
100 , f=10kHz 9
400 /50mT, 100kHz 110
3mW/cm
-
TC
fC
d
PL
� i
BS
HC
� � m
3kg/m
� '
� "
10000
�' �"
1000
100
10
1
1
Initi
al P
erm
ea
bili
ty(�) i
5000
4000
3000
2000
1000
0
50 1000 150 200 250
5000
4000
3000
2000
1000
0
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
25oC
o100 C
0 100 200 300 400 500
180
160
120
60
3P
ow
er
loss
(mW
/cm
)
80
0
140
40
20
100
20 40 60 80 100 120
300kHz
200kHz
100kHz
400kHz
PERMEABILITY(� ) vs. TEMPERATUREi
PERMEABILITY(� ) vs.a
FLUX DENSITY (B) POWER LOSSES vs.
TEMPERATURE at 50mT
10 100 1000 10000 100000
36
Frequency(kHz) oTemperature( C)
Frequency(kHz) oTemperature( C)
Material Property
PERMEABILITY(� ) vs. FREQUENCYi
FM4 MATERIAL3
Po
we
r lo
ss(m
W/c
m)
1800
1600
1400
1200
600
400
200
020 40 60 80 100 120
oTemperature( C)
200kHz
100KHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-101
Frequency(kHz)
10 100 1000 10000
50mT
o200mT(at 25 C)
100mT
50mT
o200mT(at 100 C)
100mT
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-10
1 10 100 1000 10000
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20 40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT
POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
37
Frequency(kHz) oTemperature( C)
38
FM5 MATERIAL
Symbol Unit
-
mT
A/m
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
-
25
-
Value
1600 25%
495
36
>240
3.3
8
4700
500 /50mT, 25kHz 200
H=1200(A/m), 100 , f=10kHz 400
100 , f=10kHz 20
500 /50mT, 100kHz 85
3mW/cm
-
TC
fC
d
PL
� i
BS
HC
� � m
3kg/m
10000
�' �"
1000
100
10
1
Frequency(kHz)
10 100 1000 10000 100000
� '
� "
Initi
al P
erm
ea
bili
ty(�) i
3000
2500
2000
1500
1000
0
500
oTemperature( C)
50 1000 150 200 250 300
3500
3000
2500
1500
1000
0
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
500
2000
0 100 200 300 400 500
Frequency(kHz)
25oC
o100 C
700
600
400
3P
ow
er
loss
(mW
/cm
)
0
500
200
100
20 40 60 80 100 120
oTemperature( C)
700kHz
500kHz
400kHz
1MHz
PERMEABILITY(� ) vs. TEMPERATUREi
PERMEABILITY(� ) vs.a
FLUX DENSITY (B) POWER LOSSES vs.
TEMPERATURE at 50mT
Material Property
PERMEABILITY(� ) vs. FREQUENCYi
FM5 MATERIAL3
Po
we
r lo
ss(m
W/c
m)
2400
2200
2000
1800
1600
1400
200
0
1000
800
600
400
20 40 60 80 100 120
oTemperature( C)
200kHz
100kHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-101
Frequency(kHz)
10 100 1000 10000
50mT
o200mT(at 25 C)
100mT
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-10
1
Frequency(kHz)
10 100 1000 10000
50mT
o200mT(at 100 C)
100mT
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20
oTemperature( C)
40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
39
BM30 MATERIAL
Symbol Unit
-
mT
A/m
mT
Condition
25 , 10kHz, 1mT
H=1194(A/m), 25 , f=10kHz
25 , f=10kHz
H=1194(A/m), 25 , f=10kHz
-
-
Value
3500 25%
525
12
100
<3.5
8
4850
100 /200mT, 25kHz 410
H=1194(A/m), 100 , f=10kHz 420
100 , f=10kHz 10
100 /200mT, 100kHz 850mW/cc
Br
d
PL
� i
BS
HC
� � m
3kg/m
PERMEABILITY(� ) vs. TEMPERATUREi
POWER LOSSES(P ) vs.L
TEMPERATURE at 100KHz 200mT
tan /� i f=100kHz-610
>240
-1.0~1.025 ~60
TC -
-610 /K� F
4500
4000
3500
3000
2500
2000
1500
1000
0
�' �"
1 10 100 1000 10000
� ' � "
Initi
al P
erm
ea
bili
ty(�) i
7000
5000
4000
3000
2000
1000
0
0 80-40 160 200 280
6000
FLUX DENSITY(B ) at 1194 A/m S
vs. TEMPERATURE
0 50 100 150
oTemperature( C)
600
400
300
200
100
0
Flu
x d
en
sity
(mT
)
500
900
800
700
600
400
Po
we
r lo
ss(m
W/c
c)
300
500
0
20 40 60 80 100 120
oTemperature( C)
200
100
40
Frequency(kHz)oTemperature( C)
Material Property
PERMEABILITY(� ) vs. FREQUENCYi
50 150 2500
2000
4000
6000
8000
10000
10010
102
103
104
1000 10000 100000
BM14 MATERIAL
Symbol Unit
-
mT
A/m
mT
Condition
25 , 10kHz, 1mT
H=1194(A/m), 25 , f=10kHz
25 , f=10kHz
H=1194(A/m), 25 , f=10kHz
-
-
Value
1600 25%
530
14
100
6
4900
100 /200mT, 25kHz 900
H=1194(A/m), 100 , f=10kHz 440
100 , f=10kHz 6
100 /200mT, 100kHz 400mW/cc
Br
d
PL
� i
BS
HC
� � m
3kg/m
>290TC -
Material Property
PERMEABILITY(� ) vs. FREQUENCYi
Frequency(kHz)oTemperature( C)
Flux density(mT)
41
3P
ow
er
loss
(mW
/cm
)
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
oTemperature( C)
POWER LOSSES(P ) vs.L
TEMPERATURE at 200mT
PERMEABILITY(� ) vs. TEMPERATUREi
0 100 200 300 400
0
2000
4000
6000
8000
40 80 120 1600
200
400
600
800
25 100kHz100
25kHz
�' �"
� ' � "
EER Core
Application of EER types� For high inductance and low height� Use of this winding wires of tapes� For compact winding design with low leakage inductance� Flyback converter for TV and monitor� SMPS
Product overview EER type
Fig. 1 Fig. 2
Fig. 3
Fig. 4
53
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
EER 0905
EER 1105
EER 1916
EER 2622
EER 2817D
9.350.15
10.850.17
2.450.1
2.450.1
4.90.1
5.90.1
7.5MIN
8.7MIN
3.40.1
4.130.12
1.6750.1
1.5750.1
13.5
13.6
8.9
12.4
120
173
0.833
1.124
3
3
5.6519.00.3
8.050.2
5.10.2
14.50.3
5.10.2 +0.25
-0.0539.4 22.8 898 0.728 2
25.50.5
11.00.2
7.50.2
19.8MIN
7.50.15
7.90.2 54.0 45.6 2465 1.061 1
28.550.55
8.50.2
11.40.25
21.6MIN
9.90.25
5.10.2
43.8 80.2 3513 2.301 3
EER 2828D28.5+0.6-0.5
14.00.25
11.40.25
21.6MIN
9.90.25
9.6+0.3-0.25
62.8 86.7 5442 1.736 2
EER 2828S28.9+0.6-0.3
14.00.25
11.40.25
22.5MIN
9.90.25
9.6+0.3-0.25
63.6 84.8 5396 1.677 2
EER 2834D28.5+0.6-0.5
16.90.2
11.40.25
21.6MIN
9.90.25
12.5+0.3-0.25
74.8 84.2 6302 1.415 2
EER 2834S28.9+0.6-0.3
17.00.25
11.40.25
22.5MIN
9.90.25
12.6+0.3-0.25
75.5 84.1 6350 1.399 2
EER 294029.3+0.6-0.5
20.00.2
11.40.25
22.90.4
9.90.25
15.60.2
87.9 83.5 7339 1.194 2
EER 3016 30.00.4
8.00.2
20.30.3
26.00.4
11.00.2
5.30.2
43.3 109.7 4749 3.185 3
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
EER Core
EER 3019N13.3
+0.15-0.2
30.00.5
9.40.15
20.30.3
25.40.4
6.60.15 47.3 134.0 6344 3.560 3
EER 312431.0
1.011.9
0.212.3
0.223.5MIN
11.00.25
7.450.2
56.2 102.8 5774 2.301 2
EER 3124N31.5
0.511.90.15
20.30.3
26.90.4
13.30.2
9.10.15
59.1 133.8 7903 2.849 2
EER 3335S33.0
0.517.3
0.313.80.25
25.00.5
12.50.25
12.80.3
78.5 125.2 9828 2.006 2
EER 3530D35.0
0.815.3
0.211.3
0.226.5MIN
11.30.2
9.80.3
70.5 108.4 7643 1.934 1
EER 353425.6+1.3
0
35.00.8
16.30.3
11.30.2
11.30.2
10.80.3 73.8 111.4 8226 1.897 1
Product overview EER type
EER 3541D 35.00.8
20.80.2
11.30.2
26.5MIN
11.30.2
15.30.3 92.4 107.0 9885 1.455 1
EER 3542D25.6+1.3
00.2535.0
0.820.9 11.3
0.211.3
0.214.9
0.3 90.5 112.4 10174 1.560 1
EER 3543D25.6+1.3
035.0
0.821.60.25
11.30.2
11.30.2
15.60.3 93.3 112.2 10150 1.490 1
EER 3940L 39.10.9
21.00.2
12.50.3
30.10.8
12.50.3
15.80.4 97.5 124.8 12169 1.610 1
EER 3944L22.0+0.4-0.2
39.10.9
12.50.3
30.10.8
12.50.3
17.0+0.4-0.25
102.2 123.6 12609 1.523 1
EER 394522.7+0.4-0.2
39.10.9
12.50.3
30.10.8
12.50.3
17.5+0.4-0.25
104.3 124.7 13006 1.503 1
EER 4042 39.90.9
21.00.2
14.90.3
31.50.8
13.950.3
15.10.3 95.4 154.0 14698 2.000 4
EER 4045 39.90.9
22.50.2
14.90.3
31.50.8
13.950.3
16.60.3 101.4 153.8 15579 1.904 4
EER 4045D 40.00.5
22.40.2
13.30.25
29.0MIN
13.30.25
15.40.25 96.9 155.8 15091 2.021 4
EER 4215B 42.01.0
21.60.2
14.70.3
31.00.8
14.70.3
15.90.3 98.9 172.5 17052 2.193 1
EER 4220 42.01.0
21.20.2
19.60.4
32.30.8
17.30.35
15.0+0.6
094.6 235.6 22287 3.130 2
EER 4220B 42.01.0
24.70.2
19.60.4
32.30.8
17.30.35
18.5+0.6
0108.6 235.3 25551 2.723 2
EER 4220L 42.01.0
21.550.2
19.60.4
32.30.8
17.30.35
15.5+0.4-0.1
96.4 234.2 22573 3.054 2
EER 4233L 42.01.0
16.50.2
19.60.4
32.30.8
17.30.35
10.45+0.4-0.1
76.2 234.4 17863 3.868 2
EER 4242D 42.40.6
21.60.3
15.20.3
31.40.6
15.20.3
15.40.3 97.8 186.1 18207 2.391 1
EER 4242Z 42.00.6
21.60.2
15.20.25
31.00.5
15.20.25
15.60.2 97.8 183.6 17964 2.359 1
EER 4243K 42.650.65
21.70.2
19.60.4
32.80.5
17.30.25
15.60.25 97.5 235.5 22955 3.037 1
54
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
EER 4245C 42.00.6
22.40.2
15.50.25
29.4MIN
15.50.3
15.40.3 97.0 204.7 19842 2.653 1
EER 4836 48.01.0
17.70.2
17.60.4
36.80.8
17.60.4
11.450.25 86.0 228.1 19608 3.336 1
EER 493649.0+0.7-0.5
17.2+0.2-0.4
17.2+0.2-0.4
18.10.3
36.6MIN
11.50.3 87.4 232.1 20274 3.339 4
EER 494249.0+0.7-0.5
21.2+0.5-0.1
17.2+0.2-0.4
36.6MIN
17.2+0.2-0.4
14.6+0.4
099.8 232.4 23184 2.928 4
EER 4954 49.00.8
27.00.2
17.20.4
37.00.6
17.20.3
18.50.25 117.8 243.7 28703 2.600 4
EER 534553.2+0.5-0.8
20.0+0.2-0.3
23.20.3
21.50.3
39.20.5
16.30.2 107.8 318.7 34363 3.715 4
EER Core
Product overview EER type
EER 494349.0+0.7-0.5
21.2+0.5-0.1
17.2+0.2-0.4
17.20.4
15.1+0.4
0100.8 226.8 22856 2.828 436.6
MIN
55
Inductance,AL(nH)
ModelPM5 PM7 PM9 PM11
Materials
EER 1916 1)1220
EER 2622 1)1610 3)1880
EER 2817D 3)3600
EER 2828S 1)2630 1)2810
EER 2834S 1)2300 1)2490
EER 2940 3)2260
EER 3016 4)5310
EER 31241)4300
EER 3124N 1)4660
EER 3534 1)3150 1)2940
EER 1105 3)1400
EER 3019N 3)5900 3)6780
EER 2828D 1)2850 1)2940 1)2940
EER 2834D 1)2490 1)2660 1)2400
EER 3335S 1)3660
EER 0905 1)1100 1)1300 1)1100
EER 3541D 3)2590 1)2780
EER 3542D 1)2690 1)2880
EER 3944L 3)2990
EER 3945 1)2690
EER 3543D 1)2650 1)2950
EER 3940L 1)2800 3)2800
3)1400
2)3430
3)2780
Inductance,AL(nH)
ModelPM5 PM7 PM9 PM11
Materials
EER Core
EER 4836 1)5890
EER 4942 1)4840
EER 4045 1)3720
EER 4045D 3)3830
EER 4215B 1)3970 1)4260
EER 4220 3)6220
EER 4220B 1)4520 1)4840
EER 4242Z 3)4610
EER 4936 1)5810 1)5800
EER 4042 1)3570 1)3600 1)4770 1)3600
EER 4220L 1)5400 1)5580 1)5170
EER 4233L 1)6890
EER 4245C 2)4980 1)5040 9)5500
EER 4243K 3)5500 3)5500
EER 4943 1)5470
56
EER 4954 1)5220 1)52201)4850
EER 5336
EER 5345 1)6860 1)7350 1)7350
Note : 1) 10kHz, 0.1V 2) 1kHz,1V3) 1kHz, 0.1V 4) 10kHz ,1V
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
59
Dimension and Parameter
EE Core
Application of EE typesSmall EE type� Impedance matching transformer in telecom application.� For miniature transformer and SMD coil former.
Middle and Large EE Type� High permeability for common mode chokes and broadband transformer.� For switching mode power supply.� Energy storage chokes.
Product overview EE type
Fig. 1
EE 0808C 3.0750.15
8.30.2
4.150.15
3.60.2
6.150.15
1.9+0.1-0.2
19.8 7.4 150 0.469 1
EE 09124.70.15
9.10.2
6.20.2
2.80.1
6.40.15
2.80.1
26.9 7.8 210 0.366 1
3.225+0.2
0EE 1009
10.1+0.1-0.2
4.4750.15
5.00
-0.3
7.8+0.2-0.1
2.40.1 22.1 12.0 260 0.681 1
EE 1011B5.00
-0.34.30.1
10.20.2
5.50.1
7.80.2
2.40.2 26.4 12.0 320 0.572 1
5.0+0.2
0EE 1215 12.4
0.3
7.3+0.3
0
5.00
-0.3
8.8MIN
2.50
-0.230.6 15.8 480 0.647 1
EE 1312 4.60.1
13.00.3
6.00.15
5.90.2
10.20.3
2.80
-0.430.2 16.5 500 0.688 1
3.45+0.4
0EE 1612
16.0+0.7-0.5
5.950
-0.3
4.450.15
11.3+0.6
0
4.50.15 28.1 21.1 590 0.943 1
5.2+0.25
0EE 1614 16.0
0.37.1
+0.20
5.00
-0.412.0
0.3
4.00
-0.434.9 19.7 690 0.708 1
EE 1614C7.2
+0.20
5.3+0.25
016.0
0.37.00
-0.312.0
0.34.00
-0.435.3 27.5 970 0.980 1
EE 1616 6.00.2
16.10.6
8.150.15
4.50.2
11.3MIN
4.550.15
37.7 20.5 770 0.683 1
EE 1616B 10.70978020.937.15.7
+0.40
11.3+0.6
0
4.50.15
4.450.15
8.20
-0.3
16.0+0.7-0.5
EE 1616D 10.68078020.537.96.00.2
4.550.15
11.5MIN
4.50.2
8.150.15
16.30.3
EE 1625 10.447109019.755.410.20.2
4.00.2
12.20.3
4.90.2
12.250.2
16.20.4
EE 1852 10.395370034.1108.523.170.2
5.50.15
12.20.25
6.00.2
18.00.5
26.20.350
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
Product overview EE type
EE Core
22.00.5
EE 2229 10.703225035.563.510.80.2
5.750.25
16.00.4
5.750.25
14.60.3
EE 2520 11.043201040.949.36.6
+0.3-0.1
25.40.5
6.350.25
19.05REF
6.350.25
9.90.25
EE 1916 10.77895024.239.24.70
-0.5
5.20
-0.5
5.50.15
14.50.5
7.90.2
19.00.4
EE 1916F 10.75497024.140.24.70
-0.5
5.20
-0.45.750.15
14.50.3
8.150.2
19.00.3
EE 1927 10.469144023.262.211.25
0.254.50.2
14.60.3
5.00.2
13.50.2
19.50
-0.7
EE 2020 10.976163035.645.87.0
+0.40
5.90
-0.4
14.1+0.6
0
5.90
-0.5
10.20
-0.4
20.0+0.8-0.6
EE 2020C 11.776284063.344.85.90
-0.4
14.1 +0.6
0
6.9 0.2
10.9 0.25
9.7 0.2
20.0+0.8-0.6
EE 1916B 10.77096024.239.65.20
-0.5
5.60.15
14.50.5
8.00.2
19.00.4
4.70
-0.5
EE 2218 11.169166039.342.26.00
-0.55.450.15
16.00.4
9.450.2
22.00.4
6.00
-0.5
EE 2520S 11.076208042.249.36.6
+0.3-0.1
25.40.5
6.350.25
19.05REF
6.550.25
9.90.25
1EE 25257.50
-0.4525.4
0.412.6
0.217.65
0.47.50.15
8.90.2 57.5 56.7 3260 1.238
1EE 2525C11.0
0-0.45
17.4+0.5
0
25.40.4
12.60.2
7.50.15
8.90.2 57.3 84.0 4820 1.842
1EE 2525F 25.050.75
12.550.25
7.20.3
17.90.4
7.250.25
8.950.25 57.8 51.8 2990 1.128
1EE 2525S 25.40.4
12.90.2
7.00.3
17.650.4
7.50.15
9.20.2 58.7 52.9 3110 1.132
1EE 2525W 25.050.75
12.550.25
10.750.3
17.90.4
7.250.25
8.950.25 57.8 77.4 4470 1.684
1EE 2532D 25.40.5
16.150.3
6.350.25
19.00.3
6.350.3
13.00.3
74.6 40.4 3010 0.680
1EE 282110.45+0.5
028.5
0.410.8
0.320.7
0.37.15
0.36.65+0.5
051.9 81.1 4210 1.962
1EE 3030 30.00.5
15.00.2
7.10.2
19.90.4
6.90.3
9.950.25 65.3 60.1 3930 1.157
1EE 3325D24.8+0.6-0.2
33.30.7
12.250.25
12.70.3
9.80.3
7.750.25 60.1 114.9 6900 2.403
1EE 3327B 33.00.7
14.250.25
12.70.3
24.60.4
9.70.3
9.750.25 67.9 114.0 7740 2.112
1EE 3327D24.8+0.6-0.2
33.30.7
14.250.25
12.70.3
9.80.3
9.750.25 68.0 114.9 7820 2.122
1EE 352814.15+0.5-0.25
9.3+0.35
-0.2
9.3+0.35
-0.234.60.64
25.0MIN
9.780.28 69.0 85.5 5900 1.557
1EE 403529.5+1.1
039.9
0.817.30.15
11.70.3
11.650.35
10.20.2 75.6 153.8 11620 2.559
60
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
Product overview EE type
EE Core
1EE 4054 40.20.7
27.250.25
11.650.35
29.00.5
11.650.35
20.250.25 117.7 138.4 16290 1.479
1EE 4133 41.51.0
16.80.3
12.70.25
28.55MIN
12.70.3
10.40.25 77.6 162.8 12630 2.637
1EE 421543.0
0-1.7
21.20
-0.4
15.20
-0.5
29.5+1.2
0
12.20
-0.5
14.8+0.7
096.5 194.5 18760 2.534
1EE 4215F43.0
0-1.7
21.40
-0.4
15.20
-0.5
29.5+1.2
0
12.20
-0.5
15.0+0.7
097.3 194.5 18920 2.513
1EE 422043.0
0-1.7
21.20
-0.4
20.00
-0.1
29.5+1.2
0
12.20
-0.5
14.8+0.7
096.5 255.9 24690 3.334
1EE 504712.0+0.3-0.2
50.00.5
23.50.4
34.00.5
15.50.3
15.50.4 105.4 189.8 20010 2.263
12.01EE 5049 +0.3
-0.2
50.00.5
24.50.4
34.00.5
15.50.3
16.50.4 109.4 189.8 20760 2.180
1EE 5555A21.0
0-0.8
55.151.05
27.50.3
38.10.6
16.950.25
18.80.3 123.4 359.3 44320 3.661
1EE 5555S 55.151.05
27.50.3
24.70.3
38.10.6
16.950.25
18.80.3 123.4 422.6 52130 4.306
1EE 6565 65.151.35
32.50.3
27.00.4
45.10.9
19.650.35
22.60.4 147.0 535.5 78710 4.580
1EE 7066 70.51.0
33.20
-0.5
32.00
-0.6
48.0+1.5
0
22.00
-0.7
21.9+0.7
0148.8 715.1 106410 6.041
1EE 7066C 70.51.0
33.20
-0.5
45.00
-0.6
48.0+1.5
0
22.00
-0.7
21.9+0.7
0148.8 1005.6 149650 8.495
1EE 7091 70.01.5
45.50.5
19.50.5
50.00.5
19.50.5
35.50.5
203.7 386.1 78650 2.383
1EE 7091C 70.00.5
45.50.5
39.00.5
50.00.5
19.50.5
35.50.5 203.7 772.2 157300 4.766
EE 118118.0+1.5-2.5
86.5+0.75
-0.5
69.00.5
35.50.5
82.5REF
35.00.5
378.7 1249.5 473130 4.148 1
61
EE 140140.0+1.5-2.5
86.5+0.75
-0.5
69.00.5
35.00.7
105.0REF
35.00.5 401.0 1225.0 491200 3.840 1
Inductance,AL(nH)
ModelMaterials
HM1A HM2A HM3A HM5A
EE Core
EE 1616
EE 1616B
EE 1616D
EE 1852
EE 1916
EE 2020
EE 2020C
EE 2218
EE 2520
EE 2520S
EE 2525
EE 2525C
EE 2525F
EE 2525S
EE 2525W
EE 2532D
EE 1614 1)1350
EE 1625 6)1130
EE 1916F 4)1450
EE 2229 1)3620
EE 1916B
2)1870
EE 1612 1)1070
EE 1614C 1)3070
EE 0912
EE 1215
EE 1312
EE 1011B 2)1800
EE 1009 3)1400 3)1850
EE 0808C 1)666 2)1020
EE 3030
EE 3228
EE 2821
EE 3325D
EE 3327D
EE 4035
2)1600
62
PM5 PM7 PM9 PM11
2)790
1)1240
1)960
1)910
1)1000
3)1390
1)1150
1)1350
1)1590
2)540
1)900
1)1100
1)760
2)800
2)1270
3)1800
1)1080
1)1430
2)2650
1)1690
1)1680
1)800
1)1300
6)1080
1)1230
1)800EE 1927
EE 2722
1)1690
1)1910
1)2900
1)1800
1)1810
1)2680
2)3000
1)1920
1)2850
1)2040
1)4150
1)3850
2)1300
1)4100
1)3540
1)1910
1)3030
1)3850
1)4020
EE Core
Inductance,AL(nH)
ModelMaterials
HM1A HM2A HM3A HM5A
EE 4215
EE 4220
EE 5047
EE 5049
EE 5555A
EE 5555S
EE 6565
EE 7066
EE 7066C
EE 7091
EE 7091C
63
EE 4054
EE 4133
PM5 PM7 PM9 PM11
1)4520
1)5380
1)67004)8040
1)11370
1)4130
4)13000
1)4730
4)8620
1)3130
1)5350
1)65001)80001)9000
1)11920
1)4520 2)4900 1)4100
1)4700
1)4300
Note :
3 4
1) 10kHz, 0.1V 2)1kHz, 0.1V
) 1kHz, 1V ) 10kHZ ,1V
ETD : constant cross section along the magnetic path.
Fig. 1
67
Product overview EC/ETD type
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
ETD 2932
ETD 3435
ETD 3940
ETD 3940F
29.80.8
34.20.8
15.80.2
17.30.2
9.50.3
10.80.3
22.70.7
9.50.3
10.80.3
11.00.3
12.10.3
70.8
79.1
76.4
97.1
5407
7680
1.356
1.54326.3
0.7
39.10.9
19.80.2
19.8+0.4
0
12.50.3
30.10.8
12.50.3
39.10.9
12.50.3
30.10.8
12.50.3
14.60.4
14.6+0.4-0.1
92.7
93.5
124.9
124.9
11578
11677
1.694
1.679
1
1
1
1
49.5+0.4-0.5
54.51.0
41.20.8
48.70.7
16.30.4
37.00.7
16.30.4
24.7+0.5-0.15
18.1+0.5-0.15
27.80
-0.4
19.30
-0.8
19.30
-0.8
19.8+0.8
0
115.2
127.4
211.1
280.0
24328
35671
2.303
2.763
24.70.2
16.30.4
37.5MIN
16.30.4
18.10.4 115.5 209.8 24223 2.283 1
1
1
ETD 4949D
ETD 4949F
ETD 5455
ETD 4445 44.01.0
22.70.3
14.80.4
33.30.8
14.80.4 104.8 174.6 18292 2.094 1
16.5+0.4
-0
ETD Core
68
ETD Core
ModelMaterials
PM5 PM7 PM9 PM11
Inductance,AL(nH)
ETD 2932
ETD 3435
ETD 3940F
ETD 4445
ETD 4949D
ETD 4949F
ETD 5455
1)2280
1)2670
3)3020
1)3810
3)4260
3)4290
1)5210
1)3240
2)4110
1)4600
1)5610
1)4470
1)5000
1)2780
1)3190
1)3800
1)4000
Note : 1) 10kHz, 0.1V 2) 1kHz, 0.1V
3) 1kHz, 1V
4) 10kHz, 1V
EED/EEH Core
Product overview EED/EEH type
Fig. 1 Fig. 2
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
71
1
1
3.547
3.957
13079
15912
192.8
223.8
67.8
71.1
EED 2820
EED 2919
EED 4022B
EED 4025
EED 4128
21.90.3
12.132432885.750.528.00.4
6.60.2
8.50.2
20.80.3
11.90.2
10.20.2
14.8909495192.249.429.00.5
6.250.15
9.30.2
22.50.5
30.00.4
9.450.15
8.70.2
11.00.3
30.80.5
40.80.5
12.50.3
21.90.3
40.80.5
8.70.2
11.00.3
30.80.5
14.00.3
12.66325404232.0109.5EED 4547C17.5+0.4-0.1
33.5+0.8
045.5
0.717.30.25
19.60.4
23.550.2
22.287366881.744.9EEH 2618 26.00.4
9.150.2
11.50.15
18.4MIN
7.80.15
5.650.2
21.807447580.255.8EEH 2624 26.00.4
12.150.2
11.50.15
18.4MIN
7.80.15
8.650.2
22.112538395.156.6EEH 2625 25.70.4
12.30.2
13.00.25
18.1MIN
8.50.15
8.70.2
21.973576395.160.6EEH 2627A 25.70.4
13.30.2
13.00.25
18.1MIN
8.50.15
9.70.2
21.512554781.767.9EEH 2629 26.00.4
14.90.2
11.50.15
18.4MIN
7.80.15
11.40.2
22.350395686.046.0EEH 291812.0+0.3-0.2
29.30.4
9.10.2
22.00.4
8.50.15
5.50.2
22.295522797.753.5 EEH 2921C13.3+0.3-0.2
29.30.4
10.650.15
22.00.4
8.50.15
7.050.15
14.61414338229.462.540.2
0.56.40.2
11.40.3
30.322.0+0.4
11.70.2 -0.2 0.3
22.185427686.249.6 EEH 292212.0+0.3-0.2
29.30.4
10.90.2
22.00.4
8.50.15
7.30.2
Product overview EED, EEH type
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
EED/EEH Core
2
2
1.686
1.612
5564
7905
86.4
100.7
64.4
78.5
EEH 2929
EEH 3034
12.0+0.3-0.2
29.30.4
14.60.2
22.00.4
8.50.15
11.00.2
30.30.4
17.10.2
13.00.25
22.00.4
8.50.15
13.00.2
ModelMaterials
PM5 PM7 PM11
Inductance,AL(nH)
EED 2820
EED 2919
EED 4022B
EED 4025
EED 4128
EED 4244
EED 4547C
EEH 2618
EEH 2624
EEH 2625
EEH 2627A
EEH 2629
EEH 2918
EEH 2922
1)3250
2)6200
1)8210
1)6590
1)7240
1)3850
1)5200
1)3450
1)8210
3)34703)3030
3)3590
3)3730
3)2680
3)3500
3)3320
3)3000
2)2980
EEH 2929
EEH 3034
Note : 1) 10kHz, 0.1V 2) 1kHz, 0.1V 3) 1kHz, 30mV
72
19.0 13.0 11.00.3 0.3 0.2T 1911 49.1 32.4 1590 0.830 1
18.5 9.8 10.30.4 0.3 0.3 11794 1.30341.6 43.1T 1910A
19.0 13.0 6.00.3 0.3 0.2 1862 0.45049.1 17.6T 1906
18.0 12.0 6.00.3 0.3 0.3 1805 0.48145.9 17.5T 1806B
9.0 5.0 3.00.3 0.2 0.2 20.8 5.6 117 0.340 1
8.0 4.0 4.00.3 0.3 0.3 17.4 7.5 130 0.540 1
8.1 4.1 3.10.3 0.3 0.3
17.8 5.8 102 0.408 1
7.0 4.5 4.70.3 0.3 0.3 0.400 117.5 5.6 97
6.0 3.0 2.00.3 0.3 0.3
13.1 2.7 35 0.258 1
Toroid Core
Application of Toroid types� Common mode choke� Excellent interference suppression
for line filer ( HM2A, HM3A, HM5A )� Signal transformer� Highest permeability for small volume
( HM5A)
Product overview Toroid type
Fig. 1 Fig. 2
75
ModelA
FigB C C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
T 0602
T 0705
T 0803B
T 0804
T 0903
T1004
T 12.7
T 1306T
T 1308
10.0 6.0 4.00.3 0.3 0.25 0.398 124.1 7.6 183
12.7 7.1 4.70.3 0.3 0.25 0.538 129.4 12.6 370
12.7 8.0 6.350.4 0.2 0.3 31.4 14.4 453 0.579 1
8.00
-1.013.0 8.0
0.5 0.5 30.6 21.2 649 0.871 1
T 1407B 14.0 8.0 7.00.35 0.3 0.3 0.776 132.8 20.3 665
T 1608B 16.0 12.0 8.00.3 0.3 0.3 43.4 15.7 680 0.454 1
19.0 12.6 6.00.3 0.3 0.2 1904 0.48848.3 18.7T 1906B
20.00.3
10.00.3
7.00.3 43.6 33.4 1456 0.965 1T 2007B
40.00.6
24.00.4
10.00.3 96.3 78.1 7518 1.019 2
40.00.6
24.00.4
5.00.3 96.3 38.9 3749 0.508 2
38.10.5
19.00.5
16.00.4 82.8 146.6 12143 2.224 1
38.10.5
19.00.5
12.70.4 82.8 116.3 9635 1.765 1
36.50.6
23.00.6
15.4+0.6-0.3
90.2 102.9 9282 1.434 2
31.00.5
20.00.5
15.00.4 77.6 81.0 6284 1.312 1
31.00.5
19.00.4
13.00.3 75.5 76.3 5756 1.270 1
29.00.3
19.20.2
15.00.3 73.6 72.3 5319 1.234 1
29.00.5
19.00.5
15.00.6 73.2 73.7 5393 1.265 1
28.50.5
18.50.5
15.00.6 71.6 73.6 5271 1.293 1
28.50.5
18.50.5
9.00.5 71.6 44.1 3156 0.774 1
29.30.3
10.60.3
7.030.3 52.9 60.2 3189 1.431 1
25.00.3
15.00.3
12.50.3 60.2 60.9 3668 1.273 1
25.00.3
15.00.3
12.00.3 60.2 58.5 3521 1.222 1
25.00.4
15.10.3
10.00.3 60.4 48.3 2914 1.004 1
60.2 48.7 2932 1.018 125.00.
15.00.3
10.00.3
25.0 15.0 8.00.3 0.3 0.3
60.2 38.9 2343 0.813 1
22.0 14.0 12.70.4 0.4 0.25
54.7 25.4 1386 0.583 1
22.1 13.7 12.70.4 0.3 0.25 54.1 52.1 2822 1.210 1
22.0 14.0 8.00.4 0.4 0.3
31.2 1708 0.719 154.7
22.0 14.0 6.50.4 0.4 0.3
54.7 25.4 1386 0.583 1
8.0+0.320.0 12.0
0.4 0.3 -0.231.1 1497 0.812 148.1
Toroid Core
Product overview Toroid type
ModelA
FigB C C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
T 2008
T 2206B
T 2208B
T 2213
T 2213B
T 2508
T 2510
T 2510B
T 2512
T 2513
T 2907A
T 2909
T 2915
T 2915B
T 2915K
T 3113B
T 3115
T 3715
T 3813
T 3816
T 4005
T 4010
76
Toroid Core
T 4016 96.3 125.0 12040 1.632 2
T 4416 91.4 185.2 16921 2.548 1
T 4515 15.00.3 114.0 106.8 12171 1.178 2
T 4715 110.5 148.7 16431 1.692 1
T 4916 123.1 134.8 16596 1.376 2
T 4919 123.1 161.7 19914 1.651 2
T 5020 109.5 237.2 25973 2.723 1
T 5114 51.50.6 125.3 132.1 16548 1.326 1
T 5125 125.3 239.9 30054 2.407 1
T 6020 144.4 234.6 33889 2.042 1
T 7822 195.6 297.6 58212 1.912 1
Product overview Toroid type
ModelA
FigB C C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
T 4815 119.0 129.5 15409 1.368 1+0.8
Inductance,AL(nH)
Materials
T1004
T 12.7
T 1306T
T 1308
T 1407B
T 1608B
T 1805
T 1806B
9901)
T 1906
PM9PM7HM2A HM3A HM5A PM5Model
T 1906B 29602)
13001)
46001)
18001)
53503)
70004)
24003)
8803)
78002)
34204)
54602)
42901)
27001)
46001)
33303)
27003)
T 1910A 157203)
88002)
91501)
T 2007B 21851)
T 1911 83002)
45601)
58101)
T 2008 96004)
45102)
57204)
77
49.070.6
78.00.8
50.50.8
22.00.8
60.00.8
36.00.7
20.00.5
24.50.5
31.50.5
51.50.6
31.50.5
13.50.6
50.00
-1.2
25.0+1.0
0
20.0+1.2
0
31.80.6
19.050.6
49.070.6
31.80.6
15.880.6
20.0
015.0
0.5
27.00.4
15.00.4
44.450.5
30.00.4
44.60.5
20.00.4
15.90.3
40.00.6
24.00.4
16.00.3
47.00.5
48.00.5
Inductance,AL(nH)
Materials
PM9PM7HM2A HM3A HM5A PM5Model
Toroid Core
T 2206B 32001)
40801)
T 2208B
T 2213
T 2213B
T 2508
T 2510
T 2510B
T 2512
T 2513
T 2907A
T 2909
T 2915
T 2915B
T 2915K
T 3113B
T 3115
T 3715
T 3813
T 3816
T 4005
T 4010
T 4016
T 4416
T 4515
T 4715
T 4916
T 4919
T 5020
T 5114
T 5125
T 6020
T 7822
1)7300
4)9740
3)12200
4)9150
3)14270
1)6220
3)10000
1)6380
1)71401)7140
3)6760 3)10500
1)12400
1)11620
1)10300
1)16700
4)8130
1)6710 1)8540 1)122003)10930 1)12800
1)6900 1)12700
1)8890 1)120002)9200 3)13000
1)2930
1)850
1)2090
1)3190
1)5150
1)2350
1)3650
1)2900
1)3260
1)2480
1)4480
1)4200
1)3430
1)3190
1)3480
1)2570
1)3550
1)16003)2340
1)6870 1)8750 1)2750 3)3750
3)3990
Note : 1) 10kHz, 0.1V 2) 1kHz, 0.1V 3) 1kHz, 1V 4) 10kHz, 0.5V (20Ts) * Tolerance : 25%(except for HM5A), 30%(only HM5A)
1)3980 1)5040
1)6710 2)8470 1)3300
1)9300
3)25000
1)2710
T 4815 1)7540 1)9800
78
81
EPC Core
Application of EPC/LP types� For DC-DC converter� For flat transformer of lower center leg� Optimized cross section of legs� EMI suppression chokes� Good thermal response
Product overview EPC/LP type
Fig. 1 Fig. 2
Fig. 3 Fig. 4
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
EPC 1313
EPC 1716
EPC 1717
EPC 1911
EPC 1920
EPC 2228H
16.80.3
7.70.1
5.750.2
11.350.2
7.70.15
13.30.25
6.60.2
4.60.15
10.5MIN
5.60.15
4.50.1
5.3 +0.15
-0.1
17.60.4
8.550.20
6.00.15
14.3MIN
7.70.15
6.050.2
19.60.5
5.50.2
6.00.2
16.40.5
8.20.2
3.00.2
19.60.5
9.750.2
6.00.2
16.40.5
8.20.2
7.250.2
21.90.3
14.50.2
7.30.15
14.7MIN
9.50.15
11.550.15
30.6
33.7
40.2
26.3
43.3
63.1
12.5
19.9
22.8
23.0
23.0
40.2
383
670
917
605
996
2537
0.510
0.750
0.710
1.099
0.670
0.801
1
2
1
1
3
4
50.50.6
25.60.3
9.00.3
38.00.4
23.50.3
18.50.3 113.7 114.3 12996 1.264EPC 5050 5
Fig. 5
82
Inductance,AL(nH)
ModelMaterials
EPC 1313
EPC 1716
EPC 1717
EPC 1911
EPC 1920
EPC 2228H
EPC 5050
HM3A PM5 PM7 PM9 PM11
3)3130
1)1000
1)980
2)1110
2)1570
1)1030
1)1390
1)2400
1)1610
1)1200
Note : 1) 10kHz, 0.1V 2) 1kHz, 1V 3) 1kHz, 0.1V
1)1050
1)1610
EPC Core
Product overview UU type
ModelA B C D E L (mm)e
Dimension and Parameter
UU Core
Application of UU types� Pulse and high-voltage transformer� Line deflection transformer,energy storage chokes.� Common mode choke� Excellent interference suppression for line filer
( High permeability material )
Fig. 1 Fig. 2
UU 1014
UU 1116
UU 1116C
UU 1523
UU 1620
UU 2132
UU 3356
UU 100
2A (mm )e
3V (mm )e CFig
20.80.6
8.0+0.1-0.3
8.0+0.1-0.3
15.8+0.4-0.3
2.85+0.1-0.3
7.70
-0.5
10.50.3
5.00.3
5.5REF
10.50.3
5.5REF
7.00
-0.3
6.0+0.6
0
9.80.2
7.10.1
2.70.2
4.2REF
4.20.2
5.5+0.1-0.3
5.5+0.1-0.3
15.20.5
11.40.2
6.40.2
5.20.3
6.40.2
16.00.3
10.00.2
6.00.15
6.00.15
8.0+0.6
0
32.50.7
27.750.5
12.50.3
13.50.5
17.750.5
100.02.0
75.450.8
30.01.0
39.3REF
45.1REF
34.0
40.5
40.5
51.7
51.0
68.6
128.6
353.0
7.6
12.5
7.0
31.9
25.9
54.0
120.7
895.0
258
506
284
1649
1321
3704
15522
315935
0.280
0.390
0.220
0.780
0.640
0.990
1.180
3.190
1
1
1
1
1
1
1
2
85
UU Core
ModelMaterials
HM3A HM5A PM5 PM7
Inductance,AL(nH)
UU 1014
UU 1116
UU 1116C
UU 1523
UU 1620
UU 2132
UU 3356
UU 100
1)930
2)1320
2)620
1)2610
1)3850
1)1400
2)1360
3)1650
1)2650
1)6640
3)1100
3)1850
Note : 1) 1kHz, 1V 2) 1kHz, 0.1V
3) 10kHz, 0.1V
2)3000 1)2650
86
89
ModelA B C D E F
Dimension and Parameter
I
El Core
Application of EI types� Transformer for Switching Mode Power Supply� Impedance matching transformer in telecom application� For miniature transformer and SMD coil former.
Fig. 1
EI 1614
EI 1916
EI1916F
EI 2218
EI 2218B
EI 2218F
EI 2519
EI 2820
EI 3026
EI 3329D
EI 3530A
EI 4035D
Product overview EI type
EI 5042
EI 7056
19.50
-0.719.5
0-0.7
22.00.4
16.20.4
12.250.2
14.6+0.5-0.1
14.7+0.5-0.1
33.05+0.5
0
5.10
-0.4
6.00
-0.5
6.00
-0.5
6.00
-0.5
16.00.4
34.5+1.4
0
4.20
-0.4
6.00
-0.5
6.00
-0.5
6.00
-0.5
7.50
-0.6
10.00
-0.6
13.50.2
5.00.2
14.60.3
4.50.2
11.250.25
13.70.2
5.00.2
14.60.3
4.50.2
11.450.25
10.8+0.4
0
12.2+0.5
0
19.0+0.5
0
24.5+1.0
0
12.20.3
10.20.2
2.00.2
2.40
-0.32.40
-0.3
4.00.2
22.00.4
14.90.2
16.00.4
10.90.2
4.00.2
22.00.4
16.00.4
3.00.2
25.40.5
16.150.3
6.350.25
19.00.3
6.350.3
13.00.
3.20.2
28.00.4
17.00.2
10.70.3
19.00.4
3.50.2
30.250.45
21.30.3
10.650.35
20.350.35
10.650.35
16.30.3
5.50.2
33.00.5
23.60.2
12.70.3
24.00.5
5.00.2
35.150.65
24.150.35
10.00.3
25.10.5
10.00.3
18.30.3
5.50.2
40.20.7
27.250.25
11.650.35
29.00.5
11.650.35
20.250.25
7.50.3
50.11.0
14.60.4
14.60.4
9.00.25
70.01.5
45.50.5
19.50.5
50.00.5
19.50.5
35.50.5
10.50.5
10.9+0.4
0
Fig
1
1
1
1
1
1
1
1
1
1
11
1
1
1
L (mm)e3V (mm )e
2A (mm )e C
34.8
39.9
40.3
42.0
42.2
41.6
48.6
48.3
58.5
66.9
68.3
77.5
94.1
133.0
20.8
23.3
23.4
39.0
39.3
37.3
40.4
86.5
109.9
120.6
104.2
142.9
230.8
389.8
0.752
0.736
0.729
1.169
1.169
1.126
1.045
2.252
2.359
2.267
1.918
2.319
3.082
3.683
724
930
943
1638
1658
1552
1963
4178
6429
8068
7117
11075
21718
51843
EI 1916
EI1916F
EI 2218
EI 2218B
EI 2218F
EI 2519
EI 2820
EI 3026
EI 3530A
EI 4035D
EI 5042
EI 7056
Inductance,AL(nH)
ModelMaterials
HM1A HM3A PM5 PM7
EI 1614
PM9
2)1720
2)2730
2)2730
2)2730
2)2590
1)5680
2)2360
2)2630
1)1590
1)3340
1)3760
2)3960
1)3040
3)1440
4)1680
4)1680
3)2000
1)3540
3)4270
3)3580
3)4410
3)6090
2)4940
Note : 1) 10kHz, 0.1V 2) 1kHz, 0.1V 3) 1kHz, 1V 4) 10kHz, 1V
El Core
90
4.60.2
5.00.3
5.00.3
4.40.2
4.00.3
ESQ/USQ Core
Application of ESQ/USQ types� Broadband transformer� Current compensated chokes� Common mode filter
Product overview ESQ/USQ type
ModelA
FigB C D E F
Fig. 1 Fig. 2
C3V (mm )e
L (mm)e2A (mm )e
ESQ 2020
ESQ 2222
ESQ 2424
ESQ 2525
ESQ 2626
ESQ 2828
ESQ 2930
ESQ 3535
USQ 1914
USQ 2014
USQ 2014N
USQ 2114
USQ 2115A
USQ 2618
Dimension and Parameter
45.4 62.0 2815 1.717 1
1
60.0 62.0 3720 1.299 1
46.4 62.0 2877 1.680
1
46.9 119.0 5581 3.189 1
45.3 119.0 5391 3.220
1
56.7 170.0 9639 3.770 1
55.5 118.0 6549 2.660
0.410
175.8 161.0 12204 2.730
0.291
2
55.7 13.1 727 0.295 2
51.1 16.7 852
2
2
61.0 13.8 840 0.284 2
55.8 12.9 721
56.3 13.7 770 0.305
268.8 19.0 1307 0.347
24.45+0.45-0.25
25.10.4
26.10.4
28.450.55
14.20.5
14.10.25
24.45+0.45-0.25
25.60.4
26.10.4
28.450.55
19.60.3
20.60.3
20.10.4
21.20.3
22.2MIN
7.00.2
7.4REF
4.00.3
4.40.2
5.00.2
4.00.2
4.30.2
4.40.2
20.10.4
20.10.4
15.7MIN
4.00.2
15.7MIN
3.80.2
23.50.4
22.00.4
19.40.3
3.80.2
17.60.3
4.00.3
19.1MIN
4.00.3
19.1MIN
20.80.4
21.20.3
22.2MIN
5.00.3
29.00.4
30.00.4
23.00.3
5.00.25
24.00.3
7.50.3
35.00.4
35.00.4
27.0REF
7.50.3
27.0REF
3.20.2
2.40.15
4.60.2
14.10.25
20.60.3
7.35MIN
4.20.2
2.40.15
4.50.3
14.90.3
21.50.5
7.90.3
4.20.3
2.80.3
3.70.2
15.60.3
21.50.4
6.90.2
5.00.2
3.70.2
5.20.25
17.60.4
25.60.4
8.7MIN
5.20.15
3.40.15
93
ESQ/USQ Core
1) 10kHz, 0.1V 2) 1kHz, 0.1V 3) 1kHz, 1V * Tolerance : 25%(except for HM5A), 30%(only HM5A) * ESQ2424's bobbin is 5turns
ESQ 2020
ESQ 2222
ESQ 2424
ESQ 2525
ESQ 2626
ESQ 2828
ESQ 2930
ESQ 3535
USQ 1914
USQ 2014
USQ 2014N
USQ 2114
USQ 2115A
USQ 2618
HM5AHM3A
1)25003)3100
3)2460
3)4340
2)3470
3)7650
2)4300
2)2100
2)2100
3)2200
1)2100
Note :
Inductance,AL(nH)
ModelMaterials
3)5900
1)3400
1)3600
1)4400
1)4700
1)4900
2)8400
1)2800
1)2800
1)3230
94
EQ Core
Application of EQ types� For compact transformer� low distortion broadband transmission at low signal modual� DC/DC converters� Our product range also low - profile EQ cores
Product overview EQ type
Fig. 1
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
EQ 2020
EQ 2021
EQ 2028
EQ 2620
EQ 2620B
EQ 2625
EQ 3221
EQ 3231
EQ 3535
EQ 4040
EQ 5050
97
17.50
-0.25
26.60.3
19.00.45
22.50.45
12.00.2
35.10.6
26.00.5
32.00.5
14.350.25
20.50.4
10.10.2
14.00.4
18.00.4
8.80.2
7.150.2
20.50.4
10.60.2
14.00.4
18.00.4
8.80.2
7.650.2
20.50.4
14.00.2
14.00.4
18.00.4
8.80.2
11.050.2
26.50.45
10.0750.125
19.00.5
22.50.45
12.00.2
5.750.15
26.50.45
10.4750.125
19.00.5
22.50.45
12.00.2
6.150.15
12.50
-0.25
7.9+0.3
0
32.00.5
10.5750.2
22.00.5
27.50.5
13.450.25
6.050.2
32.00.5
15.4750.2
22.00.5
27.50.5
13.450.25
10.950.2
12.35+0.3
0
45.4
46.4
60.0
45.3
46.9
55.5
56.7
75.8
87.9
62.0
62.0
62.0
119.0
119.0
118.0
170.0
161.0
196.0
2815
2877
3720
5391
5581
6549
9639
12204
17228
1.717
1.680
1.299
3.220
3.189
2.660
3.770
2.730
2.810
1
1
1
1
1
1
1
1
1
20.00
-0.2540.5
0.928.0
0.637.0
0.614.9
0.314.6+0.3
0101.9 201.0 20482 2.478 1
50.00.7
24.9750.2
32.00.6
44.00.7
20.00.35
18.050.2 113.0 328.0 37064 2.650 1
EQ Core
ModelMaterials
PM5
Note : 1) 10kHz, 0.1V 2) 1kHz, 1V
PM7 PM9 PM11
Inductance,AL(nH)
EQ 2020
EQ 2021
EQ 2028
EQ 2620
EQ 2620B
EQ 2625
EQ 3221
EQ 3231
EQ 3535
EQ 4040
EQ 5050
1)2550
1)2510
1)4780
1)4640
1)2700
1)2640
1)2230
1)5050
1)5050
1)4460
1)6360
1)4960
1)4860
1)4300
1)7220
2)5680
2)5040
1)6360
1)4860
98
101
EP Core
Application of EP types� Low magnetic leakage� For power application� Excellent properities for broadband transformer� For transformers featuring high inductance and low height
Product overview EP type
Fig. 1
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
EP7
EP10
EP13
9.4 0
-0.4
12.8 0
-0.6
3.75 0
-0.1
6.5 0
-0.15
6.5 0
-0.3
9.00
-0.4
7.2 +0.4
0
9.7+0.6
0
3.4 0
-0.2
4.5 0
-0.3
2.5
0+0.2
11.5 0.3
5.10.1
7.650.2
9.40.2
3.30.1
3.70.1
4.5
0+0.2
15.7
19.2
24.2
10.3
11.3
19.5
162
217
472
0.830
0.740
1.010
1
1
1
Inductance,AL(nH)
Model
Note :
Materials
HM5A PM7 BM30
EP7
EP10
EP13
1)1910
3)2270
2)3100
2)1100
2)1100
2)1600
1)1360
1)1300
1)1970
1) 10kHz, 0.1V 2) 1kHz, 0.1V 3) 1kHz, 0.5mA
105
ModelA
FigB C D E F C
3V (mm )eL (mm)e
2A (mm )e
Dimension and Parameter
RM4
RM5
RM6
RM8
RM10
11.0 0
-0.4
14.6 0
-0.6
17.9 0
-0.6
23.2 0
-0.9
28.5 0
-1.3
5.25 0
-0.1
5.25 0
-0.1
6.25 0
-0.1
8.2 0.05
9.30.05
4.60
-0.2
6.8 0
-0.4
8.2 0
-0.4
11.0 0
-0.4
13.5 0
-0.5
8.0 +0.3
0
10.2 +0.4
0
12.4 +0.5
0
17.0 +0.6
0
21.2 +0.9
0
3.9 0
-0.2
4.9 0
-0.2
6.4 0
-0.2
8.55 0
-0.3
10.9 0
-0.4
3.5 +0.2
0
3.15 +0.2
0
4.0 +0.2
0
5.4 +0.2
0
6.2 +0.3
0
23.2
22.1
28.6
38.0
44.0
13.8
23.8
36.6
64.0
98.0
322
526
1050
2430
4310
0.744
1.354
1.609
2.117
2.800
1
1
2
1
1
Inductance,AL(nH)
ModelMaterials
PM7 FM4
Note :
RM4
RM5
RM6
RM8
RM10
1)1070
1)1800
1)2350
2)33003)4340
1)1700
1)2150
2)3000
1) 10kHz, 0.1V 2) 1kHz, 0.1V 3) 1kHz, 0.3v
RM Core
Application of RM types� For compact transformer� Low distortion broadband transmission
at low signal modual� DC/DC converters� Our product range also low
- profile RM cores
- RM4, RM5, RM6, RM8, RM10
Low profile
Product overview RM type
Fig. 1
2F2B
Fig. 2
2F2B
I 3044
I 4324
I 4416
I 4430
I 6005
I 6405
69.00.5
IH 6015
IH 6904 24.50.
3.50.
2
IH 9015
IH 9112
IH 9410
+0.564.5
-1.5I 6405B
113
064.5
-0.5
0.55.0
0.513.0
90.5+1.0-1.5
1)435
UI 9.8
UI 11.7
UI 13
ModelA B C D E
FigE A1 B1 C1
44.9
40.8
53.7
7.5
10.1
21.1
5.9
6.0
10.8
337
412
1133
0.210
0.311
0.494
1)360
1)560
1)690
UI 9.8
UI 11.7
UI 13
UI 9.8
UI 11.7
UI 13
117
1)1kHz, 1V Note :
Dimension and Parameter
109
Planar E core and I core
Advantage of planar types� Low profile� High AL value� High core surface to volume ratio� Excellent thermal performance � High output currents at low output voltages� Good EMC characteristics
Fig. 1
Fig. 1' Fig. 2'
Fig. 2
I I
Planar E core and I core
ModelA
Dimension(mm)
B C D F G HE IFig
Product overview Planar type
PEE 1407
PEE 1407C
PEE 1808
PEE 1808C
PEE 2211
PEE 2211C
PEI 1405
PEI 1405C
PEI 1806
PEI 1806C
14.00.3
3.50.1
5.00.1
11.00.25
3.00.05
2.00.1
18.00.35
4.00.1
10.00.2
14.00.3
4.00.1
2.00.1
21.80.4
5.70.1
15.80.3
16.80.4
5.00.1
3.20.1
18.00.35
4.00.1
10.00.2
14.00.3
4.00.1
2.00.1
14.00.3
3.50.1
5.00.1
11.00.25
3.00.05
2.00.1
2.80.15
18.00.35
4.00.1
10.00.2
14.00.3
4.00.1
2.00.1
3.30.15
21.80.4
5.70.1
15.80.3
16.80.4
5.00.1
3.20.1
4.70.15
18.00.35
4.00.1
10.00.2
14.00.3
4.00.1
2.00.1
2.00.05
2.40.05
1+1
2+2
1+1
2+2
1+1
2+2
14.00.3
3.50.1
5.00.1
11.00.25
3.00.05
2.00.1
1.80.05 1+1'
1+1'
1+1'
PEE 6420 63.81.3
10.20.13
50.31.0
53.61.1
10.20.2
5.10.13 1+1
14.00.3
3.50.1
5.00.1
11.00.25
3.00.05
2.00.1
1.50.05 1+1'
2.80.15
2.50.0
3.30.15
2.50.0
PEI 2208
PEI 2208C
21.80.
5.70.1
15.80.
16.80.
5.00.1
3.20.1
2.50.05 1+1'
21.80.
5.70.1
15.80.
16.80.
5.00.1
3.20.1 2+2'2.9
0.054.70.15
2.80.0
110
Effective parameter
ModelParameter
L (mm)e2A (mm )e
3V (mm )e C
PEE 1407
PEE 1407C
PEE 1808
PEE 1808C
PEE 2211
PEE 2211C
PEI 1405
PEI 1405R
PEI 1806
PEI 1806C
20.7
20.7
24.3
24.3
32.5
32.5
16.7
16.9
20.3
20.3
15.0
15.0
40.0
40.0
79.0
79.0
15.0
15.8
40.0
40.0
310
310
970
970
2560
2560
250
270
810
810
0.910
0.910
2.071
2.071
3.060
3.060
1.128
1.175
2.479
2.479
PEI 2208
PEI 2208C
26.1 80.4 2100 3.78
26.1 80.4 2100 3.78
PEE 6420 79.9 519.0 41500 8.17
2.50.20
2.50.20
2.80.20
•
•
•
PERMEABILITY(� ) vs. FREQUENCYi
4500
4000
3500
3000
2500
2000
1500
1000
0
�' �"
1 10 100 1000 10000
5000
� '
� "
PERMEABILITY(� ) vs. TEMPERATUREi
Initi
al P
erm
ea
bili
ty(�) i
HM1A MATERIAL
22
1 10 100 1000 10000
1E-02
1E-03
1E-04
1E-05
1E-06
tan
�/�'
RELATIVE LOSS FACTOR(tan /� )ivs. FREQUENCY
600
500
400
300
200
100
Flu
x d
en
sity
(mT
)
0
0 20 40 60 80 100 120
FLUX DENSITY(B ) at 1200 A/m S
vs. TEMPERATURE
oTemperature( C)Frequency(kHz)
Frequency(kHz) oTemperature( C)
Symbol
BS
HC
Brms
TC
fC�d
Unit
-
mT
A/m
mT
MHz� m3kg/m
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
3500 25%
470
5
120
>180
1.5
2
4750
� i
Material Property
HM2A MATERIAL
Symbol
tan /� i
Unit
-
mT
A/m
mT
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
f=10kHz
-
-
Value
5500 25%
430
6
65
>140
<5
1
4900
-610 / 20 60 0.2~0.7
� i
BS
HC
Brms
�d
� m3kg/m
TC
� F
-610
PERMEABILITY(� ) vs. FREQUENCYi
7000
6000
5000
4000
3000
2000
1000
1 10 100 1000 10000
�' �"
� ' � "
PERMEABILITY(� ) vs. TEMPERATUREi
Initi
al P
erm
ea
bili
ty(�) i
20000
16000
12000
8000
4000
00 20 40 60 80 100 120 140 160
RELATIVE LOSS FACTOR(tan /� )ivs. FREQUENCY
1.0E+00
1.0E-01
1.0E-02
1.0E-03
1.0E-04
1.0E-05
1.0E-06
tan
�/�'
1 10 100 1000
FLUX DENSITY(B ) at 1200 A/m S
vs. TEMPERATURE
500
400
300
200
100
00 20 40 60 80 100 120
Flu
x d
en
sity
(mT
)
23
oTemperature( C)Frequency(kHz)
Frequency(kHz) oTemperature( C)
Material Property
HM3A MATERIAL
Symbol Unit
-
mT
A/m
mT
-610
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
f=10kHz
-
-
Value
7000 25%
430
6
85
>135
<3
0.5
4900
20 60 -0.1~0-610 /
tan /� i
� i
BS
HC
Brms
�d
TC
� m3kg/m
� F
PERMEABILITY(� ) vs. FREQUENCYi
� '
� "
10000
8000
6000
4000
2000
0
�' �"
1 10 100 1000 10000
PERMEABILITY(� ) vs. TEMPERATUREi
Initi
al P
erm
ea
bili
ty(�) i
20000
16000
12000
8000
4000
0
-20 20 40 60 80 100 120 140 1600
RELATIVE LOSS FACTOR(tan /� )ivs. FREQUENCY
tan
�/�'
10 100 1000 10000
1.0E-01
1.0E-02
1.0E-03
1.0E-04
1.0E-05
1.0E-06
FLUX DENSITY(B ) at 1200 A/m S
vs. TEMPERATURE
500
400
300
200
100
00 20 40 60 80 100 120
Flu
x d
en
sity
(mT
)
24
oTemperature( C)Frequency(kHz)
Frequency(kHz) oTemperature( C)
Material Property
HM5A MATERIAL
Symbol Unit
-
mT
A/m
mT
-610
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
f=10kHz
-
-
Value
10000 30%
410
3
80
>115
<6.0
0.13
4900
-610 / 20 60 -0.15~1.0
tan /� i
� i
BS
HC
Brms
�d
TC
� m
3kg/m
� F
PERMEABILITY(� ) vs. FREQUENCYi
12000
�' �"
10000
8000
6000
4000
2000
0
1 10 100 1000 10000
� '
� "
RELATIVE LOSS FACTOR(tan /� )ivs. FREQUENCY
1.0E+00
1.0E-01
1.0E-02
1.0E-03
1.0E-04
1.0E-05
1.0E-06
tan
�/�'
1 10 100 100001000
FLUX DENSITY(B ) at 1200 A/m S
vs. TEMPERATURE
0 20 40 60 80 100 120
500
400
300
200
100
0
Flu
x d
en
sity
(mT
)
PERMEABILITY(� ) vs. TEMPERATUREi
Initi
al P
erm
ea
bili
ty(�) i 25000
20000
15000
10000
5000
0
30000
35000
-20 20 40 60 80 100 120 140 1600
25
oTemperature( C)Frequency(kHz)
Frequency(kHz) oTemperature( C)
Material Property
PM5 MATERIAL
Symbol Unit
-
mT
A/m
mT
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
2200 25%
480
12
200
>230
1.5
6
4800
100 /200mT, 25kHz 780
H=1200(A/m), 100 , f=10kHz 390
100 , f=10kHz 10
100 /200mT, 100kHz 500
3mW/cm
Br
TC
fC
d
PL
� i
BS
HC
� � m
3kg/mIn
itia
l Pe
rme
ab
ility
(�) i6000
5000
4000
3000
2000
1000
0
50 1000 150 200 250 300
PERMEABILITY(� ) vs. TEMPERATUREi
�' �"
10000
1000
100
10
10 100 1000 10000
� '
� "
PERMEABILITY(� ) vs. FREQUENCYi
3P
ow
er
loss
(mW
/cm
)
POWER LOSSES(P ) vs.L
TEMPERATURE at 100mT210
180
150
120
60
30
90
0
20 40 60 80 100 120
100kHz
50kHz
25kHzAm
plit
ud
e P
erm
ea
bili
ty (
�) a
6000
5000
4000
3000
2000
1000
0
0 100 200 300 400 500
PERMEABILITY(� ) vs.a
FLUX DENSITY (B)
25oCo100 C
26
oTemperature( C)Frequency(kHz)
Flux density(mT) oTemperature( C)
Material Property
PM5 MATERIAL3
Po
we
r lo
ss(m
W/c
m)
900
800
700
600
500
400
300
200
100
020 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
3P
ow
er
loss
(mW
/cm
)
10000
1000
100
10
1
1 10 100 1000
100mT
o200mT(at 100 C)
3P
ow
er
loss
(mW
/cm
)
Frequency(kHz)
10000
1000
100
10
1
1 10 100 1000
100mT
o200mT(at 25 C)
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20 40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT
POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
27
Frequency(kHz) oTemperature( C)
PM7 MATERIAL
Symbol Unit
-
mT
A/m
mT
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
2400 25%
480
13
140
>210
1.5
7
4800
100 /200mT, 25kHz 700
H=1200(A/m), 100 , f=10kHz 390
100 , f=10kHz 10
100 /200mT, 100kHz 410
3mW/cm
Br
TC
fC
d
PL
� i
BS
HC
� � m
3kg/m
� '
� "
10000
�' �"
1000
100
10
10 100 1000 10000
0 100 200 300 400 500
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
6000
5000
4000
3000
2000
1000
0
25oC
o100 C
Initi
al P
erm
ea
bili
ty(�) i
6000
5000
4000
3000
2000
1000
0
50 1000 150 200 250
210
180
150
120
60
3P
ow
er
loss
(mW
/cm
)
30
90
0
20 40 60 80 100 120
100kHz
50kHz
25kHz
PERMEABILITY(� ) vs. FREQUENCYi PERMEABILITY(� ) vs. TEMPERATUREi
PERMEABILITY(� ) vs.a
FLUX DENSITY (B)
POWER LOSSES(P ) vs.L
TEMPERATURE at 100mT
28
oTemperature( C)Frequency(kHz)
Flux density(mT) oTemperature( C)
Material Property
29
PM7 MATERIAL3
Po
we
r lo
ss(m
W/c
m)
900
800
700
600
500
400
300
200
100
020 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
) 1000
100
10
1
1 10 100 1000
100mT
o200mT(at 100 C)
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
1
Frequency(kHz)
10 100 1000
100mT
o200mT(at 25 C)
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20 40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
Frequency(kHz) oTemperature( C)
PM9 MATERIAL
Symbol Unit
-
mT
A/m
mT
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
3000 25%
500
10
120
>210
1.6
7
4850
3mW/cm100 /200mT, 25kHz 500
H=1200(A/m), 100 , f=10kHz 390
100 , f=10kHz 8
100 /200mT, 100kHz 385
Br
TC
fC
d
PL
� i
BS
HC
� � m
3kg/mIn
itia
l Pe
rme
ab
ility
(�) i6000
5000
4000
3000
2000
1000
0
50 1000 150 200 250
PERMEABILITY(� ) vs. TEMPERATUREi
Am
plit
ud
e P
erm
ea
bili
ty (
�) a 6000
5000
4000
3000
2000
1000
0
7000
0 100 200 300 400 500
Flux density(mT)
PERMEABILITY(� ) vs.a
FLUX DENSITY (B)
25oC
o100 C
10000
�' �" 1000
100
10
10 100 1000 10000
� '
� "
PERMEABILITY(� ) vs. FREQUENCYi
80
3P
ow
er
loss
(mW
/cm
)
20
0
60
40
100
20 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
POWER LOSSES(P ) vs.L
TEMPERATURE at 100mT
30
oTemperature( C)Frequency(kHz)
Material Property
31
PM9 MATERIAL
20 40 60 80 100 120
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
3P
ow
er
loss
(mW
/cm
)
600
500
400
300
200
100
0
20 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
) 1000
100
10
1
1
Frequency(kHz)
10 100 1000
100mT
o200mT(at 25 C)
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
1 10 100 1000
100mT
o200mT(at 100 C)
Frequency(kHz) oTemperature( C)
32
PM11 MATERIAL
Symbol Unit
-
mT
A/m
mT
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
H=1200(A/m), 25 , f=10kHz
-
25
-
-
Value
2400 25%
520
16
150
>230
1.8
7
4850
100 /200mT, 25kHz 570
H=1200(A/m), 100 , f=10kHz 420
100 , f=10kHz 9
100 /200mT, 100kHz 300
3mW/cm
Br
TC
fC
d
PL
� i
BS
HC
� � m3kg/m
10000
�' �" 1000
100
10
10 100 1000 10000
Frequency(kHz)
0 100 200 300 400 500
Flux density(mT)
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
6000
5000
4000
3000
2000
1000
0
25oCo100 C
Initi
al P
erm
ea
bili
ty(�) i
5000
4000
3000
2000
1000
0
oTemperature( C)
50 1000 150 200 250
80
3P
ow
er
loss
(mW
/cm
)
20
0
60
40
100
120
140
20 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
� '
� "
PERMEABILITY(� ) vs. FREQUENCYi PERMEABILITY(� ) vs. TEMPERATUREi
PERMEABILITY(� ) vs.a
FLUX DENSITY (B)
POWER LOSSES(P ) vs.L
TEMPERATURE at 100mT
Material Property
33
PM11 MATERIAL
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20
oTemperature( C)
40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT
POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
3P
ow
er
loss
(mW
/cm
)
700
500
400
300
200
100
0
600
20 40 60 80 100 120
oTemperature( C)
100kHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
) 1000
100
10
-10
1
1
Frequency(kHz)
10 100 1000
100mT
o200mT(at 25 C)
50mT
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-10
1
Frequency(kHz)
10 100 1000
100mT
o200mT(at 100 C)
50mT
34
Material Property
Symbol Unit Condition Value
PERMEABILITY(� ) vs. TEMPERATUREi PERMEABILITY(� ) vs. FREQUENCYi
14
140
35
PM12 MATERIAL
FM4 MATERIAL
Symbol Unit
-
mT
A/m
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
-
25
-
Value
2000 25%
490
15
>210
2
7
4570
400 /50mT, 25kHz 140
H=1200(A/m), 100 , f=10kHz 370
100 , f=10kHz 9
400 /50mT, 100kHz 110
3mW/cm
-
TC
fC
d
PL
� i
BS
HC
� � m
3kg/m
� '
� "
10000
�' �"
1000
100
10
1
1
Initi
al P
erm
ea
bili
ty(�) i
5000
4000
3000
2000
1000
0
50 1000 150 200 250
5000
4000
3000
2000
1000
0
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
25oC
o100 C
0 100 200 300 400 500
180
160
120
60
3P
ow
er
loss
(mW
/cm
)
80
0
140
40
20
100
20 40 60 80 100 120
300kHz
200kHz
100kHz
400kHz
PERMEABILITY(� ) vs. TEMPERATUREi
PERMEABILITY(� ) vs.a
FLUX DENSITY (B) POWER LOSSES vs.
TEMPERATURE at 50mT
10 100 1000 10000 100000
36
Frequency(kHz) oTemperature( C)
Frequency(kHz) oTemperature( C)
Material Property
PERMEABILITY(� ) vs. FREQUENCYi
FM4 MATERIAL3
Po
we
r lo
ss(m
W/c
m)
1800
1600
1400
1200
600
400
200
020 40 60 80 100 120
oTemperature( C)
200kHz
100KHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-101
Frequency(kHz)
10 100 1000 10000
50mT
o200mT(at 25 C)
100mT
50mT
o200mT(at 100 C)
100mT
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-10
1 10 100 1000 10000
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20 40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT
POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
37
Frequency(kHz) oTemperature( C)
38
FM5 MATERIAL
Symbol Unit
-
mT
A/m
MHz
Condition
25 , 10kHz, 1mT
H=1200(A/m), 25 , f=10kHz
25 , f=10kHz
-
25
-
Value
1600 25%
495
36
>240
3.3
8
4700
500 /50mT, 25kHz 200
H=1200(A/m), 100 , f=10kHz 400
100 , f=10kHz 20
500 /50mT, 100kHz 85
3mW/cm
-
TC
fC
d
PL
� i
BS
HC
� � m
3kg/m
10000
�' �"
1000
100
10
1
Frequency(kHz)
10 100 1000 10000 100000
� '
� "
Initi
al P
erm
ea
bili
ty(�) i
3000
2500
2000
1500
1000
0
500
oTemperature( C)
50 1000 150 200 250 300
3500
3000
2500
1500
1000
0
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
500
2000
0 100 200 300 400 500
Frequency(kHz)
25oC
o100 C
700
600
400
3P
ow
er
loss
(mW
/cm
)
0
500
200
100
20 40 60 80 100 120
oTemperature( C)
700kHz
500kHz
400kHz
1MHz
PERMEABILITY(� ) vs. TEMPERATUREi
PERMEABILITY(� ) vs.a
FLUX DENSITY (B) POWER LOSSES vs.
TEMPERATURE at 50mT
Material Property
PERMEABILITY(� ) vs. FREQUENCYi
FM5 MATERIAL3
Po
we
r lo
ss(m
W/c
m)
2400
2200
2000
1800
1600
1400
200
0
1000
800
600
400
20 40 60 80 100 120
oTemperature( C)
200kHz
100kHz
50kHz
25kHz
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-101
Frequency(kHz)
10 100 1000 10000
50mT
o200mT(at 25 C)
100mT
10000
3P
ow
er
loss
(mW
/cm
)
1000
100
10
1
-10
1
Frequency(kHz)
10 100 1000 10000
50mT
o200mT(at 100 C)
100mT
Flu
x d
en
sity
(mT
)
500
400
300
200
100
0
20
oTemperature( C)
40 60 80 100 120
POWER LOSSES (P ) vs.L
TEMPERATURE at 200mT POWER LOSSES (P ) vs.L
FREQUENCY at 25
FLUX DENSITY(B) vs. TEMPERATURE
POWER LOSSES (P ) vs. L
FREQUENCY at 100
39
BM30 MATERIAL
Symbol Unit
-
mT
A/m
mT
Condition
25 , 10kHz, 1mT
H=1194(A/m), 25 , f=10kHz
25 , f=10kHz
H=1194(A/m), 25 , f=10kHz
-
-
Value
3500 25%
525
12
100
<3.5
8
4850
100 /200mT, 25kHz 410
H=1194(A/m), 100 , f=10kHz 420
100 , f=10kHz 10
100 /200mT, 100kHz 850mW/cc
Br
d
PL
� i
BS
HC
� � m
3kg/m
PERMEABILITY(� ) vs. TEMPERATUREi
POWER LOSSES(P ) vs.L
TEMPERATURE at 100KHz 200mT
tan /� i f=100kHz-610
>240
-1.0~1.025 ~60
TC -
-610 /K� F
4500
4000
3500
3000
2500
2000
1500
1000
0
�' �"
1 10 100 1000 10000
� ' � "
Initi
al P
erm
ea
bili
ty(�) i
7000
5000
4000
3000
2000
1000
0
0 80-40 160 200 280
6000
FLUX DENSITY(B ) at 1194 A/m S
vs. TEMPERATURE
0 50 100 150
oTemperature( C)
600
400
300
200
100
0
Flu
x d
en
sity
(mT
)
500
900
800
700
600
400
Po
we
r lo
ss(m
W/c
c)
300
500
0
20 40 60 80 100 120
oTemperature( C)
200
100
40
Frequency(kHz)oTemperature( C)
Material Property
PERMEABILITY(� ) vs. FREQUENCYi
50 150 2500
2000
4000
6000
8000
10000
10010
102
103
104
1000 10000 100000
BM14 MATERIAL
Symbol Unit
-
mT
A/m
mT
Condition
25 , 10kHz, 1mT
H=1194(A/m), 25 , f=10kHz
25 , f=10kHz
H=1194(A/m), 25 , f=10kHz
-
-
Value
1600 25%
530
14
100
6
4900
100 /200mT, 25kHz 900
H=1194(A/m), 100 , f=10kHz 440
100 , f=10kHz 6
100 /200mT, 100kHz 400mW/cc
Br
d
PL
� i
BS
HC
� � m
3kg/m
>290TC -
Material Property
PERMEABILITY(� ) vs. FREQUENCYi
Frequency(kHz)oTemperature( C)
Flux density(mT)
41
3P
ow
er
loss
(mW
/cm
)
Am
plit
ud
e P
erm
ea
bili
ty (
�) a
oTemperature( C)
POWER LOSSES(P ) vs.L
TEMPERATURE at 200mT
PERMEABILITY(� ) vs. TEMPERATUREi
0 100 200 300 400
0
2000
4000
6000
8000
40 80 120 1600
200
400
600
800
25 100kHz100
25kHz
�' �"
� ' � "
Material survey
* NiZn Power Material
NM8 NM13
80020%
130020%
H=1194A/m, 25 , f=10kHz
H=1194A/m, 100 , f=10kHz
410
300
360
240
r
H=1194A/m, 25 , f=10kHz
H=1194A/m, 100 , f=10kHz
200
150
170
100
Coercive fieldstrength
19
7
18
9
420
280
410
360
>160
35.1 10
Relative resistivity >10 >10
17
45
EFD Core
Fig. 2Fig. 1
Fig. 3 Fig. 4
Fig. 5 Fig. 6
46
Application of EFD types� For DC-DC converter� For flat transformer of lower center leg� Optimized cross section of legs
Flat EFD type, optimized distribution of cross section � Good thermal response
EFD Core
Product overview EFD type
Model
EFD 0505
EFD 0607
EFD 0808
EFD 1212P
EFD 1221
EFD 1314A
EFD 1317N
EFD 1322M
EFD 1323C
EFD 1525H
EFD 1618
Dimension(mm)Fig
GFEDCBA
2.85 +0.15
-0.1
5.25 0.15
2.6 0.075
3.00.15
3.850.15
1.30.1
1.90.075
1.85 0.1
6.40.15
3.650.075
3.00.15
5.20.15
2.50.1
2.850.08
1.70.1
8.00.2
4.150.1
4.20.2
6.00.2
2.60.15
2.80.15
2
2
2
12.2 0.2
6.050.2
4.00.15
5.150.15
4.650.2
2.20.1 2
12.70.3
10.60.15
5.40.15
8.8MIN
4.40.15
8.10.15
3.50.1
2
13.20.25
6.80.15
4.80.2
10.3MIN
5.30.2
5.30.15
2.30.15 2
13.60.3
8.80.2
3.70.15
10.1MIN
5.90.15
7.00.15
1.950.15 2
13.50.3
11.30.15
4.50.15
9.7MIN
5.30.15
8.60.15
3.00.1 2
13.50.3
11.550.15
3.80.15
9.8MIN
5.30.15
9.050.15
2.70.1 2
14.70.3
12.70.15
4.750.15
10.3MIN
6.00.15
10.00.15
3.30.15 2
16.40.3
9.150.2
4.50.15
12.6MIN
6.70.15
7.450.15
2.350.1 4
EFD 1620 4.50.15
16.40.3
9.80.2
12.6MIN
6.70.15
8.10.15
2.350.1 4
EFD 163016.0
+0.25-0.15
14.95 +0.15
-0.1
5.8 +0.07
-0.1
4.00.075
12.00.15
12.650.1
2.70.1
2
EFD 1820 5.60.15
17.70.3
10.150.15
13.1 MIN
7.50.15
7.850.15
3.40.15 4
EFD 1822 5.60.15
17.70.3
10.90.2
13.1MIN
7.50.15
8.60.15
3.40.15 2
EFD 1840 5.50.15
18.250.25
20.10.2
13.50.4
6.00.15
17.10.2
3.30.15 5
6.65 +0.2-0.15
EFD 2020 15.90.3
20.50.4
10.00.25
8.90.2
7.70.2
3.6 +0.2-0.15
1
6.65 +0.2-0.15
EFD 2025 20.50.35
12.750.25
15.90.3
8.90.2
10.450.2
3.6 +0.2-0.15
1
EFD 2124C 5.90.15
21.20.4
11.80.2
15.8MIN
9.40.2
9.20.2
3.30.1 2
+0.2-0.1
9.7
Model
Product Overview of EFD types
EFD Core
Dimension(mm)
A B C D E F GFig
EFD 2124SC4.350.15
20.80.2
12.10.15
14.8MIN
8.40.1
9.10.15
2.8 +0.05
-0.12
EFD 2125 5.90.15
21.20.4
12.50.2
15.8MIN
9.40.2
9.70.2
3.30.1 4
EFD 2126C12.9 +0.2-0.15 MIN
10.3+0.2-0.15
5.90.15
21.20.4
15.8 9.40.2
3.30.1 2
EFD 2126SC 4.350.15
20.80.2
13.10.15
14.8MIN
8.40.1
10.10.15
2.8 +0.05
-0.12
EFD 2324M 22.60.3
12.20.2
7.00.15
16.6MIN
9.40.15
9.00.15
4.40.1 2
EFD 2333H 23.20.5
16.550.2
5.350.15
17.00.4
11.10.15
13.30.15
3.00.1 2
EFD 252625.0+0.7-0.6
12.80
-0.4
12.70
-0.5
18.8+0.8
08.80.25
9.3+0.5
0
8.60
-0.65
EFD 2645H 26.00.5
22.550.2
4.00.2
18.40.4
12.20.2
18.450.2
2.40.15 2
EFD 2751H12.6
+0.15-0.3
27.00.5
25.60.2
4.80.2
19.60.5
21.90.2
2.80.15 2
EFD 2762H 27.00.5
31.00.3
5.30.25
18.90.5
12.60.3
26.90.3
3.40.25 2
EFD 2525D 325.60.65
12.50.15
19.30.4
11.40.2
9.30.25
5.20.15
9.10.2
EFD 3130D 31.40.5
15.00.2
9.10.2
23.4MIN
14.60.25
11.30.2
4.90.15 1
EFD 3133 31.70.8
16.40.3
12.50.4
24.10.5
11.60.3
11.90.3
8.20.3 6
EFD 3244H 31.80.5
22.00.15
5.10.2
21.6MIN
15.350.3
17.00.15
3.150.1 2
EFD 4349D 42.90.7
24.30.15
6.70.15
27.8MIN
21.60.3
17.00.15
4.40.15 2
47
ModelParameter
L (mm)e C3V (mm )e
2A (mm )e
Effective Parameter
EFD Core
EFD 0505
EFD 0607
EFD 0808
EFD 1212P
EFD 1221
EFD 1314A
EFD 1317N
EFD 1322M
EFD 1323C
EFD 1525H
EFD 1620
EFD 1630
EFD 1820
EFD 1822
EFD 1840
EFD 2020
EFD 2025
EFD 2124C
EFD 2124SC
EFD 2125
11.48
16.62
18.29
28.06
42.41
31.63
38.58
45.93
47.78
52.35
45.01
64.12
45.36
48.36
82.48
46.69
57.69
53.09
53.04
55.39
3.12
4.05
8.37
10.74
18.41
13.25
12.34
17.32
14.75
20.96
16.12
16.15
25.66
25.65
23.01
31.12
31.15
31.26
24.96
31.74
36
67
153
302
781
419
476
796
705
1097
726
1036
1164
1241
1897
1453
1797
1659
1324
1758
0.342
0.306
0.575
0.481
0.546
0.527
0.402
0.474
0.388
0.503
0.450
0.317
0.711
0.667
0.351
0.838
0.679
0.74
0.592
0.720
EFD 2126C
EFD 2126SC
57.48
57.03
31.27
24.94
1798
1423
0.684
0.550
EFD 2324M
EFD 2333H
54.24
70.98
42.35
33.48
2297
2377
0.981
0.593
EFD 2525D
EFD 2526
EFD 2645H
EFD 2751H
EFD 2762H
57.07
58.41
94.12
108.31
128.47
58.28
79.82
30.19
35.32
42.94
3326
4662
2842
3825
5517
1.284
1.718
0.402
0.410
0.420
EFD 3130D
EFD 3133
68.64
74.42
70.93
98.88
4869
7358
1.299
1.670
EFD 3244H
EFD 4349D
92.04
100.10
50.19
97.87
4620
9788
0.685
1.230
48
EFD Core
Inductance,AL(nH)
Model
EFD 0505
EFD 0607
EFD 1212P
EFD 1221
EFD 1314A
EFD 1317N
EFD 1322M
EFD 1323C
EFD 1525H
EFD 1618
EFD 1620
EFD 1820
EFD 1822
EFD 1840
EFD 2020
EFD 2025
EFD 2124C
EFD 2125
EFD 2126C
Materials
PM5 PM7 PM12 NM13
3)380
3)4103)790
1)860
3)830
1)660
1)820
2)750
2)890
1)790
1)750
1)1020
1)1080
2)670
1)1320
1)1120
1)1170
1)12201)1130
49
EFD 2324M
EFD 2333H
EFD 2525D
EFD 2526
EFD 2645H
EFD 2751H
EFD 2762H
EFD 3130D
EFD 3133
EFD 3244H
EFD 4349D
EFD 2126SC
1)2080
1)2520
1)17402)1200
1)2210
1)22001)2880
1)2000
1)1070
2)1400
2)7002)650
2)700
Note : 1) 10kHz, 0.1V 2) 1kHz, 1V 3) 1kHz, 0.1v