MICROSMD500LR-2 Circuit Protection

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PTC Resettable Fuses, or polymeric positive temperature coefficient (PPTC) fuses, are a type of fuse which prevents overcurrents in electrical circuits. They work by providing a high resistance across a small gap in a circuit which causes current to heat up the fuse, forming a “gate”. The heat causes the resistance of the material inside the fuse to increase dramatically, quickly stopping any further current flow. Once the current is removed, the heat dissipates, and the material returns to its original resistence, thus allowing the current to flow through the circuit once again.

The MICROSMD500LR-2 is a type of PTC resettable fuse. It is designed for use in consumer electronics, computers, and automotive applications. The device has an operating temperature range of -40°C to 85°C and is rated up to 500V and 32V. It is constructed from a polymeric material with a heat-resistant metal core and features a double-adder design to ensure reliable performance. The MICROSMD500LR-2 has a fast resetting time and is capable of operating up to 32 amps in the highest current rating.

The MICROSMD500LR-2 features an inexpensive and convenient “plug and play” installation. It requires no external power source and can be easily installed with no additional wiring or components. Its unique design allows for quick and easy fault detection and then a resetting of the device, achieving a high level of safety and reliability.

The MICROSMD500LR-2 works by sensing a change in current. When an overload or short circuit is detected, the current sensing mechanism increases the heat of the metal core to open an internal “gate”. This prevents the continued flow of current through the device. Once the current is removed or drops below a specific threshold, the heat dissipates, allowing the polymeric material to contract and reset, restoring normal current flow to the circuit.

The MICROSMD500LR-2 is a reliable and efficient solution for preventing over-currents in a variety of electrical circuits. Its unique design allows for easy installation, fast resetting, and superior protection from short circuits and overloads. This makes it an ideal choice for consumer electronics, automotive applications, and other circuit protection needs.

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