GEI Inc.Planar Transformer Catalog

301 East Arrow Highway • Suite 108 • San Dimas, CA 91773-3364Telephone: (909) 592-2234 • Fax: (909) 592-2231

E-mail: components@gei-inc.comwww.gei-inc.com

GEI Inc. Planar Transformers Catalog

GHSER14 20W series page 2

GHSRM06 50W series page 3

GHSEI18 50W series page 4

GHSEI18 100W series page 5

GHSEI22-A 150W series page 6

GHSEI22-B 150W series page 7

GHSEI23-A 80W series page 8

GHSEI23-B 120W series page 9

GHSEI25 150W series page 10

GHSER25-A 250W series page 11

GHSER25-B 250W series page 12

GHSER25-C 250W series page 13

GHSPQ26 280W series page 14

GHSER30 300W series page 15

GHSER32 500W series page 16

GHSPQ35 600W series page 17

GHSPQ40 1000W series page 18

GHSEE43 2000W series page 19

GHSEE58 3000W series page 20

GHSEE64 5000W series page 21

GHSEI18 30A series page 22

other standard models coming soon:

GHSPQ65 5000W series

GHSEI18 40A series

GHSEQ32 30A series

GHSPQ35 140A series

1 GEIComponents.com

INDEX

GEI Inc. Planar Transformers Catalog

GHSER14 20WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• ERI14 planar core, multilayer PCB

• Application as DC/DC small power module

• Output power: 20W

• Working frequency: 250KHz～500KHz

• Dimensions: 15mm×14.6mm×6mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Auxiliary winding available

• Weight: ≤ 3.5g

Data:

Turn Ratio Sec N2 (5-8) AUX

GHSER14T201 9:3:N 65.0 MIN 0.3 59.0 7.5

GHSER14T202 9:4:N 65.0 MIN 0.3 59.0 9.0

GHSER14T203 9:5:N 65.0 MIN 0.3 59.0 13.5

GHSER14T301 4:5:2 15.0±15% 0.2 8.7 12.5 6-7

GHSER14T302 11:3:13 20.0±15% 0.5 99.0 7.5 2-3

GHSER14T303 11:5:13 20.0±15% 0.5 99.0 20.0 2-3

2 GEIComponents.com

DCR

(mΩ) MAXPins

Pri N1 (1-4)

Part No.N1:N2:AUX

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSRM06 50WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• RM06 core

• Application as DC/DC

• Output power: 50W MAX

• Working frequency: 200KHz - 500KHz

• Outer dimension: 17.5mm×17.1mm×8mm (MAX)

• HI-POT between (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 7.0g

Data:

Turn Ratio Sec N2 & N3

GHSRM06T201 3:2 9.5 MIN 0.5 6.6 1.5 1

GHSRM06T202 4:2 16.5 MIN 0.5 9.5 1.5 1

GHSRM06T301 6:(1+1) 125.0 MIN 0.5 18.3 1.1 2

GHSRM06T302 6:(2+2) 125.0 MIN 0.5 18.3 5.5 2

3 GEIComponents.com

DrawingDCR

(mΩ) MAX

Pri N1 (1-4)

Part No.N1:N2:AUX

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSEI18 50WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EI18 planar core

• Application as DC/DC

• Output power: 50W MAX

• Working frequency: 200KHz - 500KHz

• Outer dimension: 26.3mm×18.3mm×8mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 9.5g

Data:

Turn Ratio

GHSEI18T501 4:4:4:4:4 36.0 MIN 0.3 12.0

GHSEI18T701 4:8:8:8:8:4:4 36.0 MIN 0.3 24.0

GHSEI18T502 4:6:6:6:6 36.0 MIN 0.3 18.0

GHSEI18T503 4:14:14:14:14 36.0 MIN 0.3 100

GHSEI18T504 4:(4+4):(4+4) 36.0 MIN 0.3 24

GHSEI18T505 4:6:6:14:14 36.0 MIN 0.3 18

4 GEIComponents.com

See detailed specifications;

will customize according to

requirements

Pri N1 (1-9)

Part No.N1:N12

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Sec N1/N12

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSEI18 100WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EI18 planar core

• Application as DC/DC

• Output power: 100W MAX

• Working frequency: 200KHz - 500KHz

• Outer dimension: 20.4mm×18mm×8mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 9.5g

Data:

Turn Ratio Sec N2 (S1-S2) AUX

GHSEI18T301 4:3:2 36.0 MIN 0.5 8.0 3.0 P3-P4

GHSEI18T302 4:6:2 36.0 MIN 0.5 8.0 11.0 P3-P4

GHSEI18T303 4:8:2 36.0 MIN 0.5 8.0 22.0 P3-P4

GHSEI18T304 4:12:2 36.0 MIN 0.5 8.0 48.0 P3-P4

GHSEI18T305 8:3:8 150.0 MIN 0.5 28.0 3.0 P1-P2

GHSEI18T201 7:2:N 150.0 MIN 0.5 40.0 3.0

GHSEI18T202 10:10:N 280.0 MIN 0.5 90.0 90.0

GHSEI18T203 16:2:N 400.0 MIN 1.5 132.0 3.0

5 GEIComponents.com

DCR

(mΩ) MAXPins

Pri N1 (P1-P2)

Part No.N1:N2:AUX

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSEI22-A 150WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EI22 core

• Application as DC/DC

• Output power: 150W MAX

• Working frequency: 200KHz - 350KHz

• Outer dimension: 25.4mm×22mm×10mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 19.5g

Data:

Turn Ratio

GHSEI22T201 2:1 17.0 MIN 0.4 1.0

GHSEI22T202 4:1 65.0 MIN 0.5 16.0

GHSEI22T203 6:1 150.0 MIN 0.5 50.0

GHSEI22T204 2:3 17.0 MIN 0.4 16.0

GHSEI22T205 2:7 17.0 MIN 0.4 16.0

6 GEIComponents.com

0.8

0.8

0.8

3.5

100.0

Sec N2 (S1-S2)

DCR

(mΩ) MAX

Pri N1 (P1-P2)

Part No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSEI22-B 150WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EI22 core

• Application as DC/DC

• Output power: 150W MAX

• Working frequency: 200KHz - 350KHz

• Outer dimension: 29.6mm×22mm×10mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 25g

Data:

Turn Ratio

GHSEI22T205 2:3 18.0 MIN 0.2 1.5

GHSEI22T206 2:5 18.0 MIN 0.2 1.5

GHSEI22T207 3:4 42.0 MIN 0.3 3.1

GHSEI22T208 5:3 110.0 MIN 0.5 9.8

7 GEIComponents.com

Part No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

1.8

4.6

2.8

1.8

Pri N1 (P1-P2) Sec N2 (S1-S2)

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSER23-A 80WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• ER23 core

• Application as DC/DC

• Output power: 80W MAX

• Working frequency: 200KHz - 500KHz

• Outer dimension: 24mm×23.5mm×8.5mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Can supply auxiliary winding

• Weight：≤ 15g

Data:

Turn Ratio

GHSER23T901

(7+7):(7+7):

(7+7):(3+3):

(7+7)

630.0 MIN 0.6 60+60

GHSER23T902

(12+12):(7+7):

(7+7):(3+3):

(7+7)

1900.0 MIN 2.0 240+240

8 GEIComponents.com

30+30

30+30

Pri N1 (P1-P3)

Part No. N1:N2:N3:N4:AU

X

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Sec N2 (S7-S9)

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSER23-B 120WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• ER23 core

• Application as DC/DC

• Output power: 120W MAX

• Working frequency: 200KHz - 300KHz

• Outer dimension: 23.5mm×23mm×8.2mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 14g

Data:

Turn Ratio Sec N2 Sec N3

GHSER23T301 2:(2+2) 12.0 MIN 0.5 0.9 1.1 1.1

GHSER23T302 2:(3+3) 12.0 MIN 0.5 1.1 33.0 33

GHSER23T303 2:(5+5) 12.0 MIN 0.5 0.9 8.2 8.2

GHSER23T304 3:(1+1) 28.0 MIN 0.5 2.9 0.4 0.4

GHSER23T305 4:(2+2) 50.0 MIN 0.5 4.2 2.8 2.8

GHSER23T306 4:(3+3) 50.0 MIN 0.5 4.2 3.5 3.5

GHSER23T307 4:(4+4) 50.0 MIN 0.5 4.2 4.8 4.8

9 GEIComponents.com

DCR

(mΩ) MAX

Part No.N1:(N2+N3)

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Pri N1 (P1-P2)

GEI Inc. Planar Transformers Catalog

GHSEI25 150WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EI25 core

• Application as DC/DC

• Output power: 150W MAX

• Working frequency: 200KHz - 500KHz

• Outer dimension: 30.5mm×26mm×8.8mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 28.5g

Data:

Turn Ratio

GHSEI25T201 3:1 40.0 MIN 0.5 2.2

GHSEI25T202 3:2 40.0 MIN 0.5 2.2

10 GEIComponents.com

0.35

Part No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

0.35

Pri N1 (P1-P2) Sec N2

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSER25-A 250WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• ER25 core

• Application: AC/DC forward circuit

• Output power: 250W MAX

• Working frequency: 200KHz - 300KHz

• Outer dimension: 30mm×25.4mm×10mm (MAX)

• HI-POT (P-S): 3.0KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 26.5g

Data:

Turn Ratio

GHSER25T201 16:1 1100.0 MIN 3.0 110.0

GHSER25T202 16:2 1100.0 MIN 3.0 110.0

GHSER25T203 16:3 1100.0 MIN 3.0 110.0

GHSER25T204 16:4 1100.0 MIN 3.0 110.0

11 GEIComponents.com

1.1

2.8

4.5

Part No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

0.6

Pri N1 (P1-P2) Sec N2 (S1-S2)

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSER25-B 250WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• ER25 core

• Application: DC/DC forward circuit

• Output power: 250W MAX

• Working frequency: 200KHz - 300KHz

• Outer dimension: 27.5mm×25.4mm×10mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 27g

Data:

Turn Ratio

GHSER25T205 2:2 22.0 MIN 0.5 1.6

GHSER25T206 3:2 50.0 MIN 0.5 2.5

GHSER25T207 3:3 50.0 MIN 0.5 2.5

GHSER25T208 4:2 88.0 MIN 0.5 5.5

GHSER25T209 4:3 88.0 MIN 0.5 5.5

GHSER25T210 4:4 88.0 MIN 0.5 5.5

GHSER25T211 14:2 250.0 MIN 1.5 95.5

GHSER25T212 16:2 250.0 MIN 1.5 115.5

12 GEIComponents.com

0.8

Pri N1 (P1-P2) Sec N2 (S1-S2)

DCR

(mΩ) MAX

Part No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

1.0

0.8

0.8

1.1

0.8

1.1

3.0

GEI Inc. Planar Transformers Catalog

GHSER25-C 250WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• ER25 core

• Application: DC/DC forward circuit

• Output power: 250W MAX

• Working frequency: 200KHz - 500KHz

• Outer dimension: 29mm×25.4mm×10mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 25g

Data:

Turn Ratio

GHSER25T401 (2+2):(4+4) 17.5 MIN 0.5 3.1

13 GEIComponents.com

6.3+6.3

Pri N1+N2 Sec N3+N4

DCR

(mΩ) MAX

Part No. (N1+N2):

(N3+N4)

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSPQ26 280WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• PQ26 core

• Application: DC/DC forward circuit

• Output power: 280W MAX

• Working frequency: 200KHz - 400KHz

• Outer dimension: 27mm×26mm×18mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 45g

Data:

Turn Ratio

GHSPQ26T201 16:1 330.0 MIN 10.0 30.0

GHSPQ26T202 16:2 330.0 MIN 10.0 30.0

GHSPQ26T203 56:1 1500.0 MIN 30.0 300.0

GHSPQ26T204 80:1 3000.0 MIN 36.0 550.0

14 GEIComponents.com

0.80

0.25

0.12

Part No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

0.25

Pri N1+N2 (P1-P2) Sec N2 (S1-S2)

DCR

(mΩ) MAX

GEI Inc. Planar Transformers Catalog

GHSER30 300WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• ERI30 core

• Application: AC/DC with auxiliary winding

• Output power: 300W MAX

• Working frequency: 200KHz - 300KHz

• Outer dimension: 34.5mm×30.5mm×10mm (MAX)

• HI-POT (P-S): 3.0KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 42.5g

Data:

Turn Ratio Sec N2 (S1-S2) AUX

GHSER30T201 18:3:(2+18) 1100.0 MIN 3.2 106.0 1.0P2-P3/2T

P3-P4/18T

GHSER30T301 3:8:N 30.0 MIN 0.5 2.0 13.0

15 GEIComponents.com

DCR

(mΩ) MAXPins

Part No.N1:N2:AUX

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Pri N1 (P1-P5)

GEI Inc. Planar Transformers Catalog

GHSER32 500WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• ERI32 core

• Application: AC/DC with auxiliary winding

• Output power: 500W MAX

• Working frequency: 200KHz - 300KHz

• Outer dimension: 36.5mm×32.5mm×11mm (MAX)

• HI-POT (P-S): 3.0KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 42.5g

Data:

Turn Ratio Sec N2 & N3 AUX

GHSER32T301 12:(1+1):1 480.0 MIN 1.5 75.0 0.46 - 0.46 P3-P4

GHSER32T302 12:(2+2):1 480.0 MIN 1.5 75.0 1.0 - 1.0 P3-P4

GHSER32T303 7:(2+2):N 250.0 MIN 5.0 8.6 1.3 - 1.3

16 GEIComponents.com

DCR

(mΩ) MAXPins

Part No.N1:N2:AUX

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Pri N1 (P1-P2)

GEI Inc. Planar Transformers Catalog

GHSPQ35 600WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• PQ35 core

• Application: AC/DC with auxiliary winding

• Output power: 600W MAX

• Working frequency: 200KHz - 400KHz

• Outer dimension: 35.5mm×41.5mm×18mm (MAX)

• HI-POT (P-S): 3.0KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 80g

Data:

Turn Ratio Sec N2 & N3 AUX

GHSPQ35T401 40:(1+1):3 1000±10% 6.0 310.0 0.2 - 0.2 P3-P4

17 GEIComponents.com

DCR

(mΩ) MAXPins

Part No.N1:N2:AUX

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Pri N1 (P1-P4)

GEI Inc. Planar Transformers Catalog

GHSPQ40 1000WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• PQ40 core

• Application: DC/DC

• Output power: 1000W MAX

• Working frequency: 100KHz - 200KHz

• Outer dimension: 44.5mm×40.5mm×18mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 75g

Data:

Turn Ratio Sec N2 & N3

GHSPQ40T201 6:14 200.0 MIN 0.5 10.5 38.0 /

18 GEIComponents.com

DCR

(mΩ) MAX

NotePart No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Pri N1

GEI Inc. Planar Transformers Catalog

GHSEE43 2000WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EE43 core

• Application: DC/DC

• Output power: 2000W MAX

• Working frequency: 100KHz - 200KHz

• Outer dimension: 58mm×43.5mm×23.5mm (MAX)

• HI-POT (P-S): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 185g

Data:

Turn Ratio Sec N2

GHSEE43T201 1:10 7.2 MIN 0.4 0.2 9.0

GHSEE43T202 1:11 7.2 MIN 0.4 0.2 10.0

GHSEE43T203 2:20 35.5 MIN 0.5 0.4 22.0

GHSEE43T204 2:21 35.5 MIN 0.5 0.4 25.0

GHSEE43T205 18:17 2100.0 MIN 0.5 35.0 30.0

19 GEIComponents.com

DCR

(mΩ) MAX

Note

P3 is

shielded

winding

Part No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Pri N1

GEI Inc. Planar Transformers Catalog

GHSEE58 3000WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EE58 core

• Application: AC/DC

• Output power: 3000W MAX

• Working frequency: 50KHz - 200KHz

• Outer dimension: 79.5mm×58.5mm×21mm (MAX)

• HI-POT (P-S): 2.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 260g

Data:

Turn Ratio Sec N2 & N3

GHSEE58T301 14:(2+2) 1100.0 MIN 1.5 285.0 0.6 - 0.6 /

20 GEIComponents.com

DCR

(mΩ) MAX

NotePart No.N1:(N2+N3)

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Pri N1

GEI Inc. Planar Transformers Catalog

GHSEE64 5000WStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EE64 core

• Application: AC/DC

• Output power: 5000W MAX

• Working frequency: 50KHz - 200KHz

• Outer dimension: 88mm×64mm×21mm (MAX)

• HI-POT (P-S): 1.0KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 470g

Data:

Turn Ratio Sec N2

GHSEE64T301 6:(1+1) 2.0 MIN 1.0 6.7 0.08 /

21 GEIComponents.com

DCR

(mΩ) MAX

NotePart No.N1:N2

Inductance

(µH)

Leakage Ind.

(µH) MAX

DCR

(mΩ) MAX

Pri N1

GEI Inc. Planar Transformers Catalog

GHSEI18 30AStandard: GB/T14860和Q/MM162-2013

Features and applications:

• EI18 core

• Application: DC/DC output filter

• Rate output current: 30A RMS

• Working frequency: 200KHz - 500KHz

• Outer dimension: 20.4mm×18mm×8mm (MAX)

• HI-POT (winding to core): 1.5KVDC

• Working temperature: -40 °C - 85 °C

• Weight：≤ 9.5g

Data:

Part No. Turn RatioDCR (mΩ)

MAX

GHSEI18L150 3:12(AUX) 3.0

GHSEI18L200 3:12(AUX) 3.0

GHSEI18L250 3:12(AUX) 3.0

22 GEIComponents.com

30 RMS

30 RMS

30 RMS

Rated output

current(A)Inductance

1.5±10%

2.0±10%

2.5±10%

This catalog presents only a small portion of thestandard planar transformers manufactured byGEI Inc. Custom designs are also available to

fit any requirements. Call your local GEIrepresentative or contact GEI directly for

more information and a quote.

GEI Inc.301 East Arrow Highway • Suite 108 • San Dimas, CA 91773-3364

Telephone: (909) 592-2234 • Fax: (909) 592-2231E-mail: components@gei-inc.com

www.gei-inc.com

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