Metal Oxide Varistor Identification

Help with identify varistor.

Metal oxide varistor identification.

A metal oxide varistor or mov is the blue or orange colored circular component that you can commonly spot on the ac input side of any power supply circuit the metal oxide varistor can be considered as another type of variable resistor that can vary its resistance based on the applied voltage across it. Tinned copper wire metal compound wire. Epoxy molding flame retardant to ul 94 v 0 terminals. How to test a mov metal oxide varistor surge protector.

If lightning strikes a nearby power line the high voltage causes the mov to become a shunt preventing the. Help identifying a varistor. Metal oxide varistor grains of conducting zno average size d are separated by intergranular boundaries. Are external components required for hlk pm01.

Construction square varistor element leaded coating. Tire markings or how to read what s written on the side of the tire there is a lot of useful information on the side of your tires if you know how to interpret the markings you find there tire markings now anyone can read them 16 02 2011в в varistor degradation is defined by. A metal oxide varistor mov is an electronic device that protects an appliance s power supply from voltage spikes and surges in the ac power line. The radial leaded disc type is the most common version.

Siov metal oxide varistors b72230m thermofuse varistors mt30 series ppd var pd 2020 01 06 please read cautions and warnings and page 2 of 11 important notes at the end of this document. Need some help identify a varistor. Designing a varistor for a given nominal varistor voltage v n is basically a matter of selecting the device thickness such that the appropriate number of grains n are in series between electrodes. Help to choose fuse varistor and or tvs diode.

How to choose the right metal oxide varistor mov 0. When a high current passes through a mov its resistance value decreases and acts as a short.