Metal Oxide Varistor Circuit Diagram

The circuit we will build is shown below.

Metal oxide varistor circuit diagram.

The metal oxide varistor or mov is a voltage dependent nonlinear device that provides excellent transient voltage suppression. The boundary between each grain and a neighbor forms a diode junction which allows. The metal oxide varistor is designed to protect various types of electronic devices and semiconductor elements from switching and induced lightning surges. A varistor voltage dependent resistor vdr is a component which has a voltage current characteristics that is very much similar to that of a diode.

Working of metal oxide varistor mov working of metal oxide varistor mov the working of a mov is shown in the figure above. The metal oxide varistor is designed to protect various types of electronic devices and semiconductor elements from switching and induced lightning surges. The resistance of the mov is very high. Metal oxide varistor mov basics of varistor.

First let us consider the component to have an open circuit as shown in figure 1 a. The most common modern type of varistor is the metal oxide varistor mov. 300vac metal oxide varistor. The components needed to build this circuit are shown below.

This mov circuit will clamp up to 300vac if a power surge allowing transients into the circuit were to be that high. This type contains a ceramic mass of zinc oxide grains in a matrix of other metal oxides such as small amounts of bismuth cobalt manganese oxides sandwiched between two metal plates which constitute the electrodes of the device.