Metal Oxide Varistor Code

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.

Metal oxide varistor code.

Then followed by a date code yyww for year and week. The most common modern type of varistor is the metal oxide varistor mov. 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. A metal oxide varistor or mov protects sensitive electronic equipment from voltage spikes in the power line.

A gadget may have thousands of transistors resistors and other components but only one or two varistors. Metal oxide varistors and multi layered varistors. Metal oxide varistors consist of approximately 90 zinc oxide as a ceramic base material plus other filler materials for the formation of junctions. Mov is the most commonly used type of varistor.

Date hs code description origin country port of discharge unit quantity value inr per unit inr nov 22 2016. While it may look similar to a capacitor you can identify the device by its color markings and. They are composed primarily of z n o with small additions of other metal oxides such as bismuth cobalt magnese and others. 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.

The material is arranged between two metal plates or electrodes to interact with each other. 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 boundary between each grain and a neighbor forms a diode junction which allows. Mov s are the most used component to protect heavy devices.

Mov 07d511k metal oxide varistor semi conductors devices. Varistors are voltage dependent nonlinear devices which have electrical characteristics similar to back to back zener diodes.