Resettable Ptc Products Page 62 Resettable PTC Products

POLY-FUSE Resettable PTCs 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 Surface Mount > 250S Series Ambient Operation Temperature -40C -20C 0C 20C 40C 50C 60C 70C 85C Part Number Hold Current (A) 250S130 0.21 0.19 0.17 0.13 0.11 0.10 0.09 0.07 0.05 Temperature Rerating Temperature Rerating Curve 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. 200.00 160.00 120.00 80.00 40.00 0.00 -40.00 0.00 40.00 80.00 120.00 Device Ambient Temperature C Percentage of rated current % Protection Application Guide Region/ Specification Application Device Selection South America/ Asia/Europe ITU K.45 Access network equipment Remote terminal Repeaters WAN equipment Cross -connect 250S130 250S130V 250S130-RA 250S130-RB 250S130-RC South America/ Asia/Europe ITU K.21 Customer and IT equipment Analog modems ADSL, xDSL Phone sets, PBX systems Internet appliances POS terminals 250S130 250S130V 250S130-RA 250S130-RB 250S130-RC South America/ Asia/Europe ITU K.20 Central Office POTS/ISDN linecards T1/E1/J1 linecards ADSL/VDSL splitters CSU/DSU 250S130 250S130V 250S130-RA 250S130-RB 250S130-RC Agency Specification Selection Guide For Telecom and Networking Applications Product Lightning Power Cross 250S130 250S130V 250S130-RA 250S130-RB 250S130-RC ITU K.20/21/45 - 1.5kV 10/700 s ITU K.20/21/45 - 230Vac, 10 250S 0.10 1 10 100 1000 0.1 1 10 100 Current in Amperes Time in Seconds 0.13A

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