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.

Metal oxide varistor identification.

Tinned copper wire metal compound wire. When a high current passes through a mov its resistance value decreases and acts as a short. Metal oxide varistor grains of conducting zno average size d are separated by intergranular boundaries. How to test a mov metal oxide varistor surge protector.

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. 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. The radial leaded disc type is the most common version.

Are external components required for hlk pm01. 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. Help identifying a varistor. Need some help identify a varistor.

If lightning strikes a nearby power line the high voltage causes the mov to become a shunt preventing the. Metal oxide varistors movs are available in a variety of form factors and sizes for a broad range of applications. Testing mov with a dmm all about circuits. Epoxy molding flame retardant to ul 94 v 0 terminals.

Construction square varistor element leaded coating. 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.