A thermistor is a temperature-dependent resistor, made from materials having a large change in electrical resistance with temperature. For critical temperature thermistors, the electrical behavior is governed by a phase transformation which alters the scattering mechanism or the concentration of charge carriers. Thermistors are used as temperature sensors, as protection against current or voltage surges, as flow-meters, and in automatic gain elements.
KeywordsPercolation Threshold Conductive Filler Positive Temperature Coefficient Ceramic Filler Phillips Petroleum
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