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NTC thermistor

A thermistor is a resistance element using a phenomenon that a specific resistance changes depending on temperature. Thermistors are representatively classified into an NTC (negative temperature coefficient) resistance element whose resistance decreases according to the rise of temperature and a PTC (positive temperature coefficient) resistance element whose resistance increases according to the rise of temperature. NTC thermistors used for temperature measurement and compensation are usually made from various compositions including the oxides of manganese, nickel, cobalt, copper, iron, and other metals to form a ceramic semiconductor material. The electrical resistivity of a negative temperature coefficient (NTC) thermistor decreases with increase in temperature. NTC thermistors are used to sense temperatures from -80.degree. C. to 300.degree. C. with nominal resistance at 25.degree. C. from 0.5 ohms to 40 megohms. Therefore, they have a large temperature coefficient of resistance and a wide range of resistance values. NTC thermistor elements are widely in use for detecting the temperature of the atmosphere, solid and liquid materials, as well as for compensating for changes in the characteristics of a circuit or its component due to temperature variations. NTC thermistors are chosen when remote sensing is required, small size is desired, or where small temperature differences need to be measured.

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NTC thermistor product listings

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