Resettable Ptc Products Page 78 Resettable PTC Products

POLY-FUSE Resettable PTCs 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 Radial Leaded > 30R Series 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 Ambient Operation Temperature -40C -20C 0C 20C 40C 50C 60C 70C 85C Part Number Hold Current (A) 30R090U 1.31 1.17 1.04 0.90 0.75 0.69 0.61 0.55 0.47 30R110U 1.60 1.43 1.27 1.10 0.91 0.85 0.75 0.67 0.57 30R135U 1.96 1.76 1.55 1.35 1.12 1.04 0.92 0.82 0.70 30R160U 2.32 2.08 1.84 1.60 1.33 1.23 1.09 0.98 0.83 30R185U 2.68 2.41 2.13 1.85 1.54 1.42 1.26 1.13 0.96 30R250U 3.63 3.25 2.88 2.50 2.08 1.93 1.70 1.53 1.30 30R300U 4.35 3.90 3.45 3.00 2.49 2.31 2.04 1.83 1.56 30R400U 5.80 5.20 4.60 4.00 3.32 3.08 2.72 2.44 2.08 30R500U 7.25 6.50 5.75 5.00 4.15 3.85 3.40 3.05 2.60 30R600U 8.70 7.80 6.90 6.00 4.98 4.62 4.08 3.66 3.12 30R700U 10.15 9.10 8.05 7.00 5.81 5.39 4.76 4.27 3.64 30R800U 11.60 10.40 9.20 8.00 6.64 6.16 5.44 4.88 4.16 30R900U 13.05 11.70 10.35 9.00 7.47 6.93 6.12 5.49 4.68 Temperature Rerating 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 0.1 1 10 100 Current in Amperes Time in Seconds A B C DE F G H I K J L M

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