PTC is the abbreviation for Positive Temperature Coefficient, meaning positive temperature coefficient. It generally refers to semiconductor materials or components with a high positive temperature coefficient. Usually, the PTC we refer to is a positive temperature coefficient thermistor, abbreviated as PTC thermistor. PTC thermistor is a typical semiconductor resistor with temperature sensitivity. When it exceeds a certain temperature (Curie temperature), its resistance value increases step by step with the increase of temperature. A type of thermistor with a positive temperature coefficient. The resistance value of a thermistor shows a step wise increase with the increase of the temperature of the PTC thermistor body. The higher the temperature, the greater the resistance value
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