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A72 Series PTC Devices
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
pending
Regulation Standard
2002/95/EC
EN14582
JDT FUSE Industrial Corp.
www.jdtfuse.com
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(W)
R i max(W)
R1max(W)
Test Conditions Resistance change
A72 Series PTC Devices
727272727272727272727272727272
A72-020A72-025A72-030A72-040A72-050A72-065A72-075A72-090A72-110A72-135A72-160A72-185A72-250A72-300A72-375
404040404040404040404040404040
0.200.250.300.400.500.650.750.901.101.351.601.852.503.003.75
0.400.500.720.801.001.301.501.802.202.703.203.705.006.007.50
0.410.450.490.560.770.880.920.991.501.701.902.102.502.803.20
1.001.251.502.002.503.253.754.505.506.758.009.2512.5015.0018.75
2.22.53.03.84.05.36.37.28.29.611.412.615.619.824.0
1.250.650.450.400.350.250.200.150.130.100.070.060.040.030.02
2.751.951.330.860.770.480.400.310.250.190.140.120.080.060.05
4.403.002.101.291.170.720.600.470.380.300.220.190.130.100.08
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
JDT FUSE Industrial Corp.
www.jdtfuse.com
Thermal Derating Curve
Page 3/6
A72 Series PTC Devices
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 )
Per
cent
age
of R
ated
Cur
rent
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
0.200A0.250A0.300A0.400A0.500A0.650A0.750A0.900A1.10A1.35A1.60A1.85A2.50A3.00A3.75A
JDT FUSE Industrial Corp.
www.jdtfuse.com
Soldering Parameters
Page 4/6
A72 Series PTC Devices
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
0.310.390.470.620.781.011.161.401.712.092.482.873.884.655.81
A72-020A72-025A72-030A72-040A72-050A72-065A72-075A72-090A72-110A72-135A72-160A72-185A72-250A72-300A72-375
0.270.340.410.540.680.881.021.221.501.842.182.523.404.085.10
0.240.300.360.480.600.770.891.071.311.611.902.202.983.574.46
0.200.250.300.400.500.650.750.901.101.351.601.852.503.003.75
0.160.200.240.320.410.530.610.730.891.091.301.502.032.433.04
0.110.140.160.220.270.350.410.490.590.730.861.001.351.622.03
0.140.180.220.290.360.470.540.650.790.971.151.331.802.162.70
0.130.160.190.250.320.410.470.570.690.851.011.171.581.892.36
0.080.100.120.160.200.260.300.360.440.540.640.741.001.201.50
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.
JDT FUSE Industrial Corp.
www.jdtfuse.com
Page 5/6
A72 Series PTC Devices
Physical Dimensions(mm.)
PHYSICAL SPECIFICATIONS :
Materials : Leads
Lead Solderability :
A72-017 ~ 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 ~ 375: Tin-plJted copper , 0.52mm2 (20JWG), Φ0.81mm(0.032 in).MIL-STD-202, Method 208E
Model LeadStyleMax.
AMax.
B CTyp.
DMin.
EMax.
A72-020A72-025A72-030A72-040A72-050A72-065A72-075A72-090A72-110A72-135A72-160A72-185A72-250A72-300A72-375
7.4/0.29 7.4/0.29 7.4/0.29 7.6/0.30 6.45/0.31 9.7/0.38 10.4/0.41 11.7/0.46 13.0/0.51 14.5/0.57 16.3/0.64 17.8/0.70 21.3/0.84 24.9/0.98 28.5/1.12
12.7/0.4812.7/0.5013.0/0.5113.5/0.5310.8/0.5414.5/0.5715.2/0.6015.8/0.6218.0/0.7119.6/0.7721.3/0.8422.9/0.9026.4/1.0430.0/1.1833.5/1.32
7.6/0.37.6/0.37.6/0.37.6/0.38.4/0.37.6/0.37.6/0.37.6/0.37.6/0.37.6/0.37.6/0.37.6/0.37.6/0.37.6/0.37.6/0.3
5.1/0.205.1/0.205.1/0.205.1/0.205.1/0.205.1/0.205.1/0.205.1/0.205.1/0.205.1/0.205.1/0.205.1/0.2010.2/0.4010.2/0.4010.2/0.40
3.1/0.123.1/0.123.1/0.123.1/0.122.4/0.123.1/0.123.1/0.123.1/0.123.1/0.123.1/0.123.1/0.123.1/0.123.1/0.123.1/0.123.1/0.12
FMax.
1.0/0.041.0/0.041.0/0.041.2/0.051.2/0.051.5/0.061.5/0.061.5/0.061.2/0.051.2/0.051.5/0.061.5/0.061.7/0.072.0/0.082.0/0.08
KinkKinkKinkKinkKinkKinkKinkKink
StraightStraightStraightStraightStraightStraightStraight
XF135
E
F
C
A
C
B
D
E A
B
DC
B
D
A
= 1.35A hold current= Radial type 72 Vrms = Trademark a72
JDT FUSE Industrial Corp.
www.jdtfuse.com
Page 6/6
A72 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
A72-020A72-025A72-030A72-040A72-050A72-065A72-075A72-090A72-110A72-135A72-160A72-185A72-250A72-300A72-375
RXEF020RXEF025RXEF030RXEF040RXEF050RXEF065RXEF075RXEF090RXEF110RXEF135RXEF160RXEF185RXEF250RXEF300RXEF375
MF-R020MF-R025MF-R030MF-R040MF-R050MF-R065MF-R075MF-R090
MF-RX110MF-RX135MF-RX160MF-RX185MF-RX250MF-RX300MF-RX375
RLD72P020XFRLD72P025XFRLD72P030XFRLD72P040XFRLD72P050XFRLD72P065XFRLD72P075XFRLD72P090XFRLD72P110XFRLD72P135XFRLD72P160XFRLD72P185XFRLD72P250XFRLD72P300XFRLD72P375XF
ModelR or UK or S185A72 Reel QTY Bag QTY
A72-020 ~ A72-090
A72-110 ~ A72-185A72-250 ~ A72-375
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
JDT FUSE Industrial Corp.
www.jdtfuse.com