Metal Oxide Varistor Code

Date hs code description origin country port of discharge unit quantity value inr per unit inr nov 22 2016.

Metal oxide varistor code.

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 boundary between each grain and a neighbor forms a diode junction which allows. The material is arranged between two metal plates or electrodes to interact with each other. While it may look similar to a capacitor you can identify the device by its color markings and.

Metal oxide varistors and multi layered varistors. Varistors are voltage dependent nonlinear devices which have electrical characteristics similar to back to back zener diodes. 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. Metal oxide varistor basics.

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. A metal oxide varistor or mov protects sensitive electronic equipment from voltage spikes in the power line. They are composed primarily of z n o with small additions of other metal oxides such as bismuth cobalt magnese and others.

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

Mov s are the most used component to protect heavy devices. Mov 07d511k metal oxide varistor semi conductors devices.