Metal Oxide Varistor Code

A metal oxide varistor or mov protects sensitive electronic equipment from voltage spikes in the power line.

Metal oxide varistor code.

They are composed primarily of z n o with small additions of other metal oxides such as bismuth cobalt magnese and others. Metal oxide varistors consist of approximately 90 zinc oxide as a ceramic base material plus other filler materials for the formation of junctions. While it may look similar to a capacitor you can identify the device by its color markings and. The material is arranged between two metal plates or electrodes to interact with each other.

The metal oxide varistor or mov for short is a voltage dependant resistor in which the resistance material is a metallic oxide primarily zinc oxide zno pressed into a ceramic like material. Then followed by a date code yyww for year and week. Metal oxide varistors and multi layered varistors. The metal oxide varistor or mov is.

The boundary between each grain and a neighbor forms a diode junction which allows. The most common modern type of varistor is the metal oxide varistor mov. A varistor that is made with a combination of zinc oxide other kinds of metal oxides such as manganese cobalt etc is known as metal oxide varistor. 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.

A gadget may have thousands of transistors resistors and other components but only one or two varistors. Mov is the most commonly used type of varistor. Metal oxide varistor basics. Metal oxide variators mov or now generically referred to as siov s are commonly rated by their rms withstanding voltage or 385vac in this case then above this by a joule rating 05 which seems low.

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. Mov 07d511k metal oxide varistor semi conductors devices.