TSM250 PolySwitch® Resettable PPTCs

Littelfuse TSM250 PolySwitch® Resettable PPTCs feature two 250V Telecom PPTCs in a single plastic housing to provide tip and ring overcurrent protection and aid compliance with ITU-T K.20, K.21, and K.45 as well as Telcordia GR-1089 intra-building. These surface-mount devices protect against damage caused by power cross and power induction surges with fast time to trip. Littelfuse TSM250 PolySwitch PPTCs are ideal for secondary overcurrent protection in customer premise equipment (CPE), central office (CO), and subscriber line interface cards (SLIC).