Metal Oxide Varistor Mov

These 7mm 10mm 14mm and 20mm radial leaded varistors feature high current handling high energy absorption capability and fast response times to protect against transient faults up to rated limits.

Metal oxide varistor mov. The metal oxide varistor is designed to protect various types of electronic devices and semiconductor elements from switching and induced lightning surges. The boundary between each grain and a neighbor forms a diode junction which allows. Bourns mov metal oxide varistors movs protect against overvoltage transients such as lightning power contact and power induction. A metal oxide varistor mov is a protection component used in power supply circuits that is powered directly from ac mains it is used to protect the circuit from high voltage spikes by varying its resistance.

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. There is no polarity for these leads and hence can be connected in both directions. The most common modern type of varistor is the metal oxide varistor mov. Metal oxide varistor basics mov is the most commonly used type of varistor.

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. 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. When a high current passes through a mov its resistance value decreases and acts as a short. Metal oxide varistors are similar to resistors and has only two leads.