Metal Oxide Varistor Mov

It is called so as the component is made from a mixture of zinc oxide and other metal oxides like cobalt manganese and so on and is kept intact between two electrodes which are basically metal plates.

Metal oxide varistor mov.

The most common modern type of varistor is the metal oxide varistor mov. The boundary between each grain and a neighbor forms a diode junction which allows. 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. The metal oxide varistor is designed to protect various types of electronic devices and semiconductor elements from switching and induced lightning surges.

Bourns mov metal oxide varistors movs protect against overvoltage transients such as lightning power contact and power induction. The metal oxide varistor or mov is a voltage dependent nonlinear device that provides excellent transient voltage suppression. There is no polarity for these leads and hence can be connected in both directions. A metal oxide varistor or mov is the blue or orange colored circular component that you can commonly spot on the ac input side of any power supply circuit the metal oxide varistor can be considered as another type of variable resistor that can vary its resistance based on the applied voltage across it.

When a high current passes through a mov its resistance value decreases and acts as a short. Metal oxide varistor basics mov is the most commonly used type of varistor. The metal oxide varistor or mov is sintered during the manufacturing operation into a ceramic semiconductor and results in a crystalline microstructure that allows movs to dissipate very high levels of transient energy across the entire bulk of the device. Special medium voltage varistors mov square disk 5 7 10 14 20 23 60 500 v 60 550 v 600 15 000 a 25 ns.