"Metal oxide varistor, or MOV, is a bipolar, semiconductor-based variable resistor that depends on voltage. Varistor, as a term, is generally used to describe voltage variable resistors. In case of MOVs, the voltage is inversely proportional to the resistance offered by the device. This means that with increase in resistance, the magnitude of voltage decreases. MOVs are primarily implemented in power transmission lines as well as circuits, which are controlled using low-frequency signals. The device can also be effectively used across various loads such as transformers, and switching power supplies."
The report also provides a review of characteristic features, benefits and shortcomings of metal oxide varistor along with strategic industry activities of major companies worldwide. In addition, 55 companies operating in the Metal Oxide Varistors arena worldwide including ABB Ltd., AVX Corporation, Elpro International Ltd., Joyin Co. Ltd., Kestar Electronic Co. Ltd., Littelfuse Inc., Nippon Chemi-Con Corporation, Schurter Inc., TE Connectivity Ltd., Vishay Intertechnology Inc., Xiamen SET Electronics Co. Ltd., and others are profiled.