Varistors | Metal Oxide Varistors | MOV | RS
They are more effective than other types of overvoltage protection components, such as varistors or gas discharge tubes, as they respond faster to the changing
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In the 1930s, small multiple-varistor assemblies of a maximum dimension of less than one inch and apparently indefinite useful lifetime found application in replacing bulky electron tube circuits as modulators and demodulators in carrier current systems for telephonic transmission. voltage-dependent resistor (VDR)) is awith an that varies with the applied voltage. The development of the varistor, in form of a new type of based on a(Cu2O) layer on copper, originated in the work by L. This type contains a mass of (ZnO) grains, in a matrix of other metal oxides, such as small amounts of bismuth, cobalt, manganes.