The Zinc Oxide Varistor (ZOV)  is a nonlinear semiconductor voltage-dependent resistor that is used in electrical circuits to limit the voltage. Electronic circuits and equipment without (MOV, ZOV, VDR) can be damaged or completely destroyed by transient overvoltages. They're mostly found in voltage-sensitive electrical gadgets' protection circuits. A varistor effectively bypasses all transient surge voltages and prevents them from reaching the devices' internal circuitry. A varistor is a voltage-dependent, nonlinear device that behaves similarly to back-to-back Zener diodes in terms of electrical behaviour. Zinc oxide varistors are nonlinear resistors made up mostly of zinc oxide and a variety of metal oxide additives. 

Specifications :

Package Include :

1 x 471KD07 470V 1.5KA 7mm Varistor