Metal Oxide Varistor Images

Varistors are voltage dependent nonlinear devices which have electrical characteristics similar to back to back zener diodes.

Metal oxide varistor images.

Metal oxide varistor is a voltage dependent resistor. Mov s are the most used component to protect heavy devices. The boundary between each grain and a neighbor forms a diode junction which allows. Movs or metal oxide varistors are a very popular product and widely used.

A metal oxide varistor or mov protects sensitive electronic equipment from voltage spikes in the power line. Metal oxide varistors and multi layered varistors. See more ideas about metal glass coating resistors. Metal oxide varistor mov to overcome the limitations of semiconductor based varistors like silicon carbide varistors the metal oxide varistors mov have been developed.

A metal oxide varistor is a device used as a component in electrical equipment the word varistor is short for variable resistor a resistor is a circuit that does not conduct electricity well. They are primarily protective devices to dump the current in excessive over voltage events and so save the circuit board or end equipment. They are composed primarily of z n o with small additions of other metal oxides such as bismuth cobalt magnese and others. Robin earl at dehn 8 jun 2015.

The devices offer a choice of varistor voltages from 18v to 1820v and vrms voltages from 11v to 1100v. The most common modern type of varistor is the metal oxide varistor mov. Mov is the most commonly used type of varistor. While it may look similar to a capacitor you can identify the device by its color markings and.

A gadget may have thousands of transistors resistors and other components but only one or two varistors. The burning issue of metal oxide varistors and how to stop thermal runaway follow article. It is also a non linear device and provides very good transient voltage surge protection. Aug 24 2016 explore tge oxide varistors s board mov metal oxide varistor on pinterest.

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 basics. Siov 1 varistors have been proven to be excellent protective devices because of their application flexibility and high reliability. Bourns mov 14d mov 20d metal oxide varistors are 14mm and 20mm radial leaded varistor devices which protect against overvoltage transients such as lightning power contact and power induction.

This is useful for controlling how much electric current travels to certain parts of electronic devices.