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What is the difference between PTC & NTC Thermistors?

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Question added by AHMED BAKRY , Assistant Electrical & Low Current Manager /HHR Project. , Saudi Binladin Group SBG
Date Posted: 2016/06/29
AHMED BAKRY
by AHMED BAKRY , Assistant Electrical & Low Current Manager /HHR Project. , Saudi Binladin Group SBG

PTC stands for Positive Temperature Coefficient. The PTC thermistor also provides variable resistance based on temperature. As temperature rises, resistance increases from low to high and blocks the spike in current.

NTC stands for Negative Temperature coefficient. The NTC thermistor provides variable resistance based on temperature. As temperature increases, the resistance drops from high to low and allows current to pass through.

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