Resettable Ptc Products Page 105 Resettable PTC Products

POLY-FUSE Resettable PTCs 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 Radial Leaded > 250R Series Ambient Operation Temperature -40C -20C 0C 20C 40C 50C 60C 70C 85C Part Number Hold Current (A) 250R080 0.12 0.11 0.09 0.08 0.06 0.05 0.04 0.03 250R080T 0.12 0.11 0.09 0.08 0.06 0.05 0.04 0.03 250R120 0.18 0.16 0.14 0.12 0.10 0.09 0.08 0.06 0.05 250R120T 0.18 0.16 0.14 0.12 0.10 0.09 0.08 0.06 0.05 250R145 0.26 0.20 0.17 0.145 0.12 0.11 0.09 0.08 0.06 250R145T 0.26 0.20 0.17 0.145 0.12 0.11 0.09 0.08 0.06 250R180 0.28 0.23 0.21 0.18 0.16 0.13 0.10 0.11 0.083 250R180T 0.28 0.23 0.21 0.18 0.16 0.13 0.10 0.11 0.083 Temperature Rerating Temperature Rerating Curve -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 10% 30% 50% 70% 90% 110% 130% 150% 170% Temperature (C) Percentage of Rated Current 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. Note: Typical Temperature rerating curve, refer to table for derating data 0.01 0.1 1 10 100 1000 10000 100000 0.11 10 100 Fault Current in Amperes Resistance (ohm) A B C D Curve Designation I hold (A) A 0.18 B 0.145 C 0.12 D 0.80 Additional Information Datasheet Samples Resources Samples

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