Manufacturing thermal protectors and switches since 2010.

PPTC

HCET PPTC PolySwitch Resettable PPTC Fuse SMD Fuse
PPTC series polymer positive temperature coefficient thermistors are composed of a polymer matrix and conductive carbon black particles. Due to the certain conductivity of this material, there will be current passing through it. When an overcurrent passes through a thermistor, the heat generated will cause it to expand, resulting in the separation of carbon black particles and an increase in its resistance.

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