Surge suppression thermistor Tyco Electronics Circuit protection
PolySwitch

Raychem%u2019s PolySwitch devices are used to help protect against harmful overcurrent surges, and overtemperature faults. Like traditional fuses, these devices limit the flow of dangerously high current during fault conditions. The PolySwitch device, however, resets after the fault is cleared and power to the circuit is removed, thereby reducing warranty, service and repair costs.

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