How does an ntc thermistor work
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How Does an NTC Thermistor Work??
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Transcript of How does an ntc thermistor work
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How Does an NTC Thermistor Work??
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NTC thermistors are electronic devices whose
electrical resistance varies in inverse proportion to
environmental temperature.
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Types Of NTC Thermistor
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The resistance of an NTC thermistor decreases as the temperature rises, and vice
versa.
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Construction
An NTC thermistor is typically a semiconductor, made from oxides of
cobalt, copper, nickel, iron or titanium, pressed into a small bead, disk or
wafer.
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An NTC thermistor initially has a high resistance, which limits the
current that can flow.
Operation
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Zero-Power Resistance
An NTC thermistor has what is known as a zero-power resistance. This is its resistance when power dissipation as heat is negligible.