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A resettable fuse or polymeric positive temperature coefficient device (PPTC) is a passive electronic component used to protect against overcurrent faults in electronic circuits. The device is also known as a multifuse or polyfuse or polyswitch .
An assortment of thermal fuses. A thermal cutoff is an electrical safety device (either a thermal fuse or thermal switch) that interrupts electric current when heated to a specific temperature. These devices may be for one-time use (a thermal fuse), or may be reset manually or automatically (a thermal switch).
A positive-temperature-coefficient heating element (PTC heating element), or self-regulating heater, is an electrical resistance heater whose resistance increases significantly with temperature. The name self-regulating heater comes from the tendency of such heating elements to maintain a constant temperature when supplied by a given voltage.
Positive temperature coefficient, of materials which increase resistance with temperature Polymeric positive temperature coefficient (PPTC) device or resettable fuse; PTC heating element, a type of self-regulating heater; PTC thermistor, a type of resistor; Positive train control, a type of train protection system
The northern lights, seen here in Oregon in May, might be visible in parts of the U.S. on New Year's Eve. (Jenny Kane/AP) (ASSOCIATED PRESS)
The pack includes diodes in each branch to minimize the possibility of reverse charging the cells. PTCs, or positive temperature coefficient thermistors act as resettable fuses. PTCs begin to get warm at a trip current. The warmth increases their resistance which produces even more heat, and the PTC quickly "trips" and shuts off most of the ...
Victoria Hughes says she was fired from IHOP after feeding a man who was hungry. She has since been offered her job back.
A North Carolina father was arrested Monday after allegedly storming into a high school and choking a teenage student in a caught-on-video attack. Quinton Lofton, 43, was charged with felony ...
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