The VP3225K401R175 from KEMET Corporation is a Thermoplastic Encapsulated Varistor that has been designed to protect electronic equipment against high voltage surges occurring in the low and medium voltage regions. It has an AC voltage rating of 175 V, a DC voltage rating of 225 V, and a clamping voltage of 455 V. This varistor offers direct surface-mount equivalents to leaded disc varistors that come in 5 mm and 7 mm sizes. It is encapsulated with a thermoplastic material that offers non-flammable capability according to UL 94 V–0 flame-retardant standard, thereby ensuring safety during operation.

This RoHS-compliant varistor is available in a surface mount package that measures 8 x 6.3 x 2.3 mm and is ideal for medical instruments, integrated circuits, and transistors, mobile communication, white goods, entertainment electronics, lighting ballasts, as well as the protection of low and medium voltage boards, remote controls, and electrical counter applications.