A250 Series PTC Devices

PRODUCT DATASHEET

Page 1/6

A250 Series PTC Devices

Description

The JDTFUSE A250 Series is designed to protect against short duration high voltage fault currents (power cross or power induction surge) typically found in telecom applications (250Vrms). The series can be used to help telecom networking equipment meet the protection requirements specified in ITU K.20 and K.21.

Features

●

● ●●●

0.03 - 1.0A hold current range, 60VDC operating voltage250VAC interrupt ratingFast time-to-tripBinned and sorted narrow resistance ranges availableRoHS compliant, Lead-Free and Halogen-Free*

Customer Premises Equipment (CPE)Central Office (CO)/telecom centersLAN/WAN equipmentAccess equipment

Applications

● ● ● ●

Agency Approvals

Agency File Number

E472196

Regulation Standard

2002/95/EC

EN14582

Revised:04/06/18JDT FUSE Industrial Corp.

www.jdtfuse.com

Performance Specification

Environmental Specifications

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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 VmaxVint / Vop

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

A250 Series PTC Devices

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

A250-030A250-040A250-050A250-060A250-080A250-090 A250-110 A250-120A250-145A250-180A250-200A250-300A250-400A250-500A250-600A250-800A250-1000

0.030.040.050.060.080.090.110.120.1450.180.200.300.400.500.600.801.00

0.060.080.100.120.160.180.220.240.290.360.400.600.801.001.201.602.00

250/60250/60250/60250/60250/60250/60250/60250/60250/60250/60250/60250/60250/60250/60250/60250/60250/60

3.03.03.03.03.03.03.03.03.010.010.010.010.010.010.010.010.0

1.001.001.001.001.001.001.001.001.001.001.501.502.502.503.003.504.00

0.150.200.250.300.400.450.500.600.7250.901.001.502.002.503.004.005.00

0.400.450.450.503.003.000.750.752.5015.015.01.5010.01.5010.0 8.0010.0

40.030.024.020.012.010.06.006.003.500.801.501.000.750.500.500.400.28

120656060222012126.54.06.05.03.02.52.01.0 0.8

180100909033311718146.09.09.06.05.05.03.02.5

Revised:04/06/18JDT FUSE Industrial Corp.

www.jdtfuse.com

Thermal Derating Curve

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A250 Series PTC Devices

Derating Curves for A250 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

CURRENT IN AMPERES

A=A250-030B=A250-040C=A250-050D=A250-060E=A250-080F=A250-090G=A250-110H=A250-120I=A250-145J=A250-180K=A250-200L=A250-300M=A250-400N=A250-500O=A250-600P=A250-800Q=A250-1000

Revised:04/06/18JDT FUSE Industrial Corp.

www.jdtfuse.com

Soldering Parameters

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A250 Series PTC Devices

Ihold Versus Temperature

t L 60~150 s

tsPreheat 60~180 s

t 25°C to peak

Time

TL 217

TP 260

25

TP 20~40 S

Ramp-up Critical Zone TL to TP

Ramp-down

Tsmax

Tsmin

150

200

Tem

pera

ture

(°C

)

引线材料：AR030-AR1000镀锡铜包钢线绝缘材料：环氧树脂聚合物符合UL94-V-0要求

Revised:04/06/18JDT FUSE Industrial Corp.

www.jdtfuse.com

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A250 Series PTC Devices

Physical Dimensions(mm.)

Model Max.A

Typ.B C

Max.D

Min.E

Max.

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.

FIG

A250-030A250-040A250-050A250-060A250-080A250-090A250-110A250-120A250-145A250-180A250-200A250-300A250-400A250-500A250-600A250-800A250-1000

12.712.712.712.712.712.712.612.612.611.017.017.017.018.018.022.022.0

7.67.67.67.67.67.67.67.67.67.67.67.67.67.67.67.67.6

5.15.15.15.15.15.15.15.15.15.15.15.15.15.15.15.15.1

4.54.54.54.54.54.54.54.54.54.54.54.54.54.54.54.54.5

7.47.47.47.47.47.47.07.07.09.012121216162020

11111122211133333

Revised:04/06/18JDT FUSE Industrial Corp.

www.jdtfuse.com

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A250 Series PTC Devices

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

B-0.5 KR or KURAT120A250 Reel QTY Bag QTY

B-x.x=Resistance Bin

Range within 0.5ohmin one lot. (Optional)

K=Kink leadsR=Tape&Reel

U=Bulk package

Rx= Resistance

range(Optional)

T= Pre-trippedU= Uncoated

Blank= Standard

HoldCurrent

(mA)

Productname250V 1500 500

Packaging Quantity

PHYSICAL SPECIFICATIONS :

Materials : Lead Solderability :

A250- 030~400: Tin-plated copper, 22AWG, Φ0.6mm(0.026 in) A250-500~1000Φ0.8mm(0.026 in)MIL-STD-202, Method 208E

A250-030A250-040A250-050A250-060A250-080A250-090A250-110A250-120A250-145A250-180A250-200A250-300A250-400A250-500A250-600A250-800A250-1000

----

TRF250-080-

TRF250-110TRF250-120TRF250-145TRF250-180

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MF-RX012/250MF-RX014/250MF-RX018/250

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HVR250P080CF--

HVR250P120CFHVR250P145CFHVR250P180CF

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Revised:04/06/18JDT FUSE Industrial Corp.

www.jdtfuse.com