Metal Oxide Varistor Datasheet

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 datasheet. 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 mov data sheet features wide operating voltage v 1ma range from 18v to 1100v fast responding to transient over voltage large absorbing transient energy capability low clamping ratio and no follow on current meets msl level 1 per j std 020 operating temperature 40 105. Metal oxide varistors and multi layered varistors. Metal oxide varistors movs radial lead varistors la varistor series should transients occur in rapid succession the average power dissipation is the energy watt seconds per pulse times the number of pulses per second.

They are intended for use in a variety of applications from low voltage dc to off line board level protection. Typical leakage at 25ºc 25µa maximum leakage 100µa at v m dc. A metal oxide varistor mov is a protection component used in power supply circuits that is powered directly from ac mains it is used to protect the circuit from high voltage spikes by varying its resistance. L suffix is a low capacitance and energy version.

Varistors are voltage dependent nonlinear devices which have electrical characteristics similar to back to back zener diodes. The devices have a high current handling high energy absorption capability and fast response. Tdk electronics metal oxide varistors are designed for specific applications and should not be used for. The metal oxide varistors offer a choice of varistor voltages from 18 v to 1800 v and vrms voltages from 11 v to 1100 v.

02 21 20 surface mount multilayer varistors mlvs. Contact your littelfuse sales representative for custom capacitance requirements. Metal oxide varistors movs surface mount varistors ch series ch varistor series rohs description ch series transient surge suppressors are small metal oxide varistors movs manufactured in leadless chip form. Metal oxide varistor b72230m m401 thermal protective varistor mt30 ppd var pd 2020 01 10 please read cautions and warnings and page 7 of 10 important notes at the end of this document.

The metal oxide varistor or mov is. General information the mov 20dxxxk series of 20 mm radial leaded varistor devices protects against overvoltage transients such as lightning power contact and power induction. The power so developed must be within the specifications shown on the. Metal oxide varistors movs 2020 littelfuse inc.

Metal oxide varistors are similar to resistors and has only two leads. Cautions and warnings general 1. Metal oxide varistors movs surface mount multilayer varistors mlvs mla series notes.