MOV-07D431K is a 7 mm radial leaded metal oxide varistor designed to protect against overvoltage transients such as lightning, power contact, and power induction. The device features a nominal varistor voltage of 430 V with a maximum continuous voltage rating of 275 V r.m.s. (350 V d.c.), and delivers a maximum peak current of 28 A at 8/20 µs pulse duration with a maximum energy absorption of 1200 J. It exhibits fast response times of 10–25 ns and operates reliably across a temperature range of -40°C to +105°C. The varistor is RoHS compliant, UL 1449 certified, and commonly used in power supplies, power systems, line voltage protection, telecom systems, and white goods applications where high current handling and rapid transient suppression are essential.