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The most common modern type of varistor is the metal-oxide varistor (MOV). This type contains a ceramic mass of zinc oxide (ZnO) grains, in a matrix of other metal oxides, such as small amounts of bismuth, cobalt, manganese oxides, sandwiched between two metal plates, which constitute the electrodes of the device.
A metal-oxide varistor (MOV) consists of a bulk semiconductor material (typically sintered granular zinc oxide) that can conduct large currents when presented with a voltage above its rated voltage. [ 13 ] [ 29 ] MOVs typically limit voltages to about 3 to 4 times the normal circuit voltage by diverting surge current elsewhere than the ...
MOV may refer to: MOV (x86 instruction), a mnemonic for the copying of data from one location to another in the x86 assembly language.mov, filename extension for the QuickTime multimedia file format; Metal oxide varistor, an electronic component with a significant non-ohmic current-voltage characteristic
GE's MOV was new in 1972 and fortuitously I stumbled across an article by 4 General Electric R&D people that sets forth how you get from "metal oxide" to "polycrystalline diodes-in-bulk" better than anything I knew before. The ref is: Metal-oxide varistor: a new way to suppress transients."
In some DC circuits, a varistor made of inexpensive metal oxide, called a metal oxide varistor (MOV) is used. They may be unipolar or bipolar, like two inverse-series silicon Zener diodes, but are prone to wear out after about a dozen max-rated joules of energy absorption such as lightning protection, but are suitable for lower energy.
A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.
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