The LVM2P-075R14431 from Littelfuse is a Polymer-Protected Metal Oxide Varistor that has been designed for line voltage applications. This varistor has a DC voltage rating of 430 V, a power rating of 1 W, and a clamping voltage of 710 V. It incorporates PolySwitch polymeric positive temperature coefficient (PPTC) and metal oxide varistor (MOV) technology to help reduce board space requirements and component count. This varistor provides a current limiting function during over-current events and voltage clamping during over-voltage events. It helps address the need for resettable circuit protection devices to be used in the cost-sensitive public switched telephone network (PSTN) and voice over internet protocol (VoIP) telephony equipment. This RoHS-compliant varistor resets itself once the fault condition is removed and power is cycled, thereby continuing the operation of the equipment. It is available in a through-hole package that measures 16 x 36.5 x 7.4 mm and is ideal for cordless telephones, security systems, MDF modules, VoIP gateways, fax machines, data modems, analog and ISDN line cards and set-top box applications.
