Resettable Ptc Products Page 99 Resettable PTC Products

POLY-FUSE Resettable PTCs 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 Radial Leaded > 135R Series Average Time Current Curves The average time current curves and Temperature Rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. 1 10 100 1000 0.05 A 0.08 A 0.12 A 0.16 A 0.17 A 0.33 A 0.55 A 0.70 A 0.75 A 0.90 A 1.00 A 1.25 A 1.30 A 1.60 A 1.85 A 2.00 A 2.50 A 3.00 A 3.75 A 135L Time in Seconds 0.01 0.001 0.1 1 10 100 Current in Amperes 1 10 100 1000 135L Time in Seconds 0.01 0.1 1 10 100 Current in Amperes 0.10 A 0.15 A 0.20 A 0.25 A 0.30 A 0.35 A 0.40 A 0.50 A 0.65 A 0.80 A 1.10 A 1.35 A Part Number I hold (A) I trip (A) V max (V int ) I max (A) Maximum Time To Trip Resistance Agency Approvals Current (A) Time (Sec.) R min ( ) R typ ( ) R 1max ( ) 135R1300 1.30 2.70 135 10.0 6.75 9.6 0.12 0.30 0.44 Pending 135R1350 1.35 2.70 135 13.5 6.75 7.5 0.11 0.38 0.52 135R1600 1.60 3.20 135 12.0 8.00 11.4 0.09 0.22 0.33 135R1850 1.85 3.70 135 12.0 9.25 12.6 0.08 0.19 0.29 135R2000 2.00 4.20 135 20.0 10.00 36.0 0.08 0.12 0.21 135R2500 2.50 5.00 135 15.0 12.50 15.6 0.05 0.13 0.19 135R3000 3.00 6.00 135 17.0 15.00 19.8 0.04 0.10 0.15 135R3750 3.75 7.50 135 20.0 18.75 24.0 0.03 0.08 0.12 I hold = Hold current: maximum current device will pass without tripping in 25C still air. I trip = Trip current: minimum current at which the device will trip in 25C still air. V int = Maximum voltage the device can withstand without damage at rated current (I max) V op = The device regular operation voltage I max = Maximum fault current device can withstand without damage at rated voltage (V max ) P d = Power dissipated from device when in the tripped state at 25C still air. R min = Minimum resistance of device in initial (un-soldered) state. R typ = Typical resistance of device in initial (un-soldered) state. R 1max = Maximum resistance of device at 25C measured one hour after tripping. Caution: Operation beyond specified rating may result in damage, possible arcing and fire. Electrical Characteristics (continued)

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