product datasheetpage 1/6 a72 series ptc devices description the jdtfuse a72 series is designed to...

A72 Series PTC Devices

PRODUCT DATASHEET

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Description

The JDTFUSE A72 Series is designed to provide overcurrent protection to 72Vdc maximum voltage with a maximum 40A short circuit rating.

Features

● ● ● ●

72Vdc max voltage w/max 40A short circuit ratingRoHS compliant, Lead-Free and HalogenFree*Resettable featureIdeal for a broad range of general electronics using a low voltage power supply

Load protection on wide range of low voltage power suppliesComputersComputers peripheralsGeneral electronics

Applications

●

● ● ●

Agency Approvals

Agency File Number

E472196

Regulation Standard

2002/95/EC

EN14582

Recised:01/06/18JDT FUSE Industrial Corp.

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Performance Specification

Environmental Specifications

Page 2/6

I hold = Hold Current. Maximum current device will not trip in 25°C still air.I trip = Trip Current. Minimum current at which the device will always trip in 25°C still air.V max = Maximum operating voltage device can withstand without damage at rated current (Imax).I max = Maximum fault current device can withstand without damage at rated voltage (V max).Pd = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.Ri min/max = Minimum/Maximum device resistance prior to tripping at 25°C.R1max = Maximum device resistance is measured one hour post reflow.CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.

Model V max(V dc)

I max(A)

I hold@25°C

(A)

I trip@25°C

(A)

P dTyp.(W)

MaximumTime To Trip Resistance

Current(A)

Time(Sec)

R i min(Ω)

R i max(Ω)

R1max(Ω)

Test Conditions Resistance change


72727272727272727272727272727272

A72-020A72-025A72-030A72-040A72-050A72-065A72-075A72-090A72-110A72-135A72-160A72-185A72-250A72-300A72-375A72-500

40404040404040404040404040404040

0.200.250.300.400.500.650.750.901.101.351.601.852.503.003.755.00

0.400.500.720.801.001.301.501.802.202.703.203.705.006.007.5010.0

0.520.520.590.660.800.900.951.001.511.711.982.102.502.803.203.20

1.001.251.502.002.503.253.754.505.506.758.009.2512.5015.0018.7525.00

3.63.23.03.84.05.36.37.28.29.611.412.615.619.824.024.0

1.501.000.760.450.400.270.180.140.140.120.090.080.050.040.030.02

2.841.951.380.880.790.500.420.330.270.210.160.140.100.080.060.06

4.493.002.201.401.200.740.620.490.400.320.240.210.150.120.100.10

Passive aging 　　

Humidity aging 　　

Thermal shock 　　

Resistance to solvent 　　

Vibration 　　

Ambient operating conditions : - 40 °C to +85 °CMaximum surface temperature of the device in the tripped state is 125 °C

+85°C, 1000 hrs.+85°C, 85% R.H. , 168 hours+85°C to -40°C, 20 timesMIL-STD-202,Method 215MIL-STD-202,Method 201

±5% typical±5% typical±33% typicalNo changeNo change


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Thermal Derating Curve

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Derating Curves for A72 Series

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80

20

40

60

80

100

120

140

160

180

Temperature (°C )

Perc

enta

ge o

f Rat

ed C

urre

nt

Average Time-Current Curve

0.01

0.1

1

10

100

1000

0.1 1 10 100

CURRENT IN AMPERES

TIM

E IN

SEC

ON

D

0.200A0.250A0.300A0.400A0.500A0.650A0.750A0.900A1.10A1.35A1.60A1.85A2.50A3.00A3.75A5.00A


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Soldering Parameters

Page 4/6


Time

TP 260

100

25

Soldering 5Sea.MAX

Gradual Cooling

Pre-Heating 1 Minute Min.

Tem

pera

ture

(°C

)

Ihold Versus Temperature

Model- 40°C - 20°C 0°C 25°C 40°C 50°C

Maximum ambient operating temperature (Tmao) vs. hold current (Ihold)

60°C 70°C 85°C

0.310.390.470.620.781.011.161.401.712.092.482.873.884.655.816.59


0.270.340.410.540.680.881.021.221.501.842.182.523.404.085.105.78

0.240.300.360.480.600.770.891.071.311.611.902.202.983.574.465.15

0.200.250.300.400.500.650.750.901.101.351.601.852.503.003.754.50

0.160.200.240.320.410.530.610.730.891.091.301.502.032.433.043.64

0.110.140.160.220.270.350.410.490.590.730.861.001.351.622.032.42

0.140.180.220.290.360.470.540.650.790.971.151.331.802.162.703.00

0.130.160.190.250.320.410.470.570.690.851.011.171.581.892.362.65

0.080.100.120.160.200.260.300.360.440.540.640.741.001.201.501.60

Profile Feature Pb-Free Assembly

Average Ramp-Up Rate(Ts max to T p)Preheat -Temperature Min(Ts min) -Temperature Max(Ts max) -Time(Ts min to Ts max)Time maintained above: -Temperature(TL) -Time(tL)Peak Temperature(Tp)Ramp-Down RateTime 25℃ to Peak TemperatureStorage Condition

3℃/second mac.

150℃200℃60~180 seconds

217℃60~150 seconds260℃6℃/second max.8 minutes max0℃~35℃,≤70%RH

Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-freeRecommended maximum paste thickness is 0.25mmDevices can be cleaned using standard industry methods and solvents.Note 1:All temperature refer to topside of the package, measured on the package body surface.Note 2: If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements.


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Physical Dimensions(mm.)

PHYSICAL SPECIFICATIONS :

Materials : Leads

Lead Solderability :

A72-020 ~ 040: Tin-plJted copper-clJd steel, 0.205mm2 (24JWG), Φ0.51mm(0.020 in).A72-050 ~ 090: Tin-plJted copper , 0.205mm2 (24JWG), Φ0.51mm(0.020 in).A72-110 ~ 500: Tin-plJted copper , 0.52mm2 (20JWG), Φ0.81mm(0.032 in).MIL-STD-202, Method 208E

Model FIGMax.

AMax.

B CTyp.

DMin.

EMax.


7.407.407.407.807.909.7010.411.713.014.516.317.821.323.928.528.5

12.712.713.016.216.217.818.418.418.019.621.322.926.428.633.533.5

7.67.67.67.67.67.67.67.67.67.67.67.67.67.67.67.6

5.105.105.105.105.105.105.105.105.105.105.105.1010.210.210.210.2

3.13.13.13.13.13.13.13.13.13.13.13.13.13.13.13.1

FMax.

1.01.01.01.21.21.51.51.51.21.21.51.51.72.02.02.0

1111111222222222


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Cross Reference

“PolySwitch” is a registered trademark of Tyco Electronics.“POLY-FUSE” is a registered trademark of Littelfuse,Inc.“EVERFUSE” is a registered trademark of Polytronics Technology Corp.

Tape & Reel packaging per EIA468-B standard.

ModelTyco / PolySwitch® Bourns / POLY-FUSE® Polytronics / EVERFUSE®

Cross Reference


RXEF020RXEF025RXEF030RXEF040RXEF050RXEF065RXEF075RXEF090RXEF110RXEF135RXEF160RXEF185RXEF250RXEF300RXEF375RXEF500

MF-R020MF-R025MF-R030MF-R040MF-R050MF-R065MF-R075MF-R090

MF-RX110MF-RX135MF-RX160MF-RX185MF-RX250MF-RX300MF-RX375MF-RX500

RLD72P020XFRLD72P025XFRLD72P030XFRLD72P040XFRLD72P050XFRLD72P065XFRLD72P075XFRLD72P090XFRLD72P110XFRLD72P135XFRLD72P160XFRLD72P185XFRLD72P250XFRLD72P300XFRLD72P375XFRLD72P500XF

ModelR or UK or S185A72 Reel QTY Bag QTY

A72-020 ~ A72-090

A72-110 ~ A72-185A72-250 ~ A72-500

R= Tape &Reel

U= Bulkpackaged

K= Kink leads　

S=Straight leads

HoldCurrent

(A)

Radial type

72 V

3000

1500-

500

500500

Packaging Quantity

Order information Packing


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product datasheetpage 1/6 a72 series ptc devices description the jdtfuse a72 series is designed to...

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