High Performance Varistor

mov varistor is a non-linear voltage characteristics of the resistance of the device is mainly used in the voltage clamp circuit when subjected to excessive pressure, absorb excess current to protect sensitive devices. English name called "Voltage Dependent Resistor" abbreviated as "VDR", or called "Varistor". High Performance Varistor resistive material is a semiconductor, so it is a variety of semiconductor resistor. Now extensive use of "zinc oxide" (ZnO) varistors efficient, its main material divalent element zinc (Zn) and hexavalent elemental oxygen (O) of the composition. So from the point of view of materials, zinc oxide varistor is an efficient "Ⅱ-Ⅵ Group oxide semiconductor." In China Taiwan, Glass Coating varistors called "surge absorber", sometimes also referred to as "electric shocks (surge) suppressor (absorber)."
High Performance Varistor is a voltage limiting protection devices. Efficient use of

the nonlinear characteristics of the varistor, when an overvoltage occurs between the two poles of the varistor efficient, high varistor voltage can be clamped to a relatively fixed voltage value, in order to achieve protection of the post-stage circuit. The main parameters and High Performance Varistors are: varistor voltage, current capacity, junction capacitance and response time.