The Working Principle Varistor
Suntan Technology Company Limited
---All Kinds of Capacitors
Varistor is one kinds of transient voltage suppression devices which can be used instead of transient suppression diodes, zener diode and capacitor combination. Varistor IC and other devices can protect the circuit, to prevent electrostatic discharge, surges and other transient current (such as lightning, etc.) the damage caused by them. Simply use varistors and connected to the protected circuit IC or device, when the voltage value above a certain moment, the varistor resistance decreased rapidly, conducting high current, thereby protecting the IC or electrical equipment; when the voltage is lower than the varistor voltage value, the varistor resistance high, almost open, and thus will not affect the device or the normal operation of electrical equipment.
