PFSM.250.2 Circuit Protection

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PTC (positive temperature coefficient) resettable fuses are popularly used in a wide range of applications due to their low cost and easy installation. They are available in various current ratings to suit different applications, from 0.15 A to 250 A.

The PFSM.250.2 is a PTC resettable fuse designed for current ratings between 1-32A with an operating temperature from-40°C to +125°C. Its features make it an ideal choice for various electronic applications, including digital displays, motherboards, power supplies, and signal boards.

The PFSM.250.2 is made up of a metal coil with a PTC element placed inside. The PTC element acts as a heater that is triggered by an overcurrent situation. When too much current passes through the coil, the contact of the fuse opens and the PTC element begins to heat up. As the PTC element heats up it will reduce the current flowing through the contact, eventually breaking the current completely. After the current is broken, the PTC element will start to cool down and the contact will reset itself.

The PFSM.250.2 has a maximum operating voltage of 250V AC or DC, and can be used in conjunction with circuit protection components such as relays, SCRs, and thermistors. It also offers a high thermal capacity, making it ideal for applications requiring high current load under continuous operation or high inrush current, including overvoltage and short-circuit protection. In addition, the low power dissipation of the PFSM.250.2 reduces the heat generated under overload conditions, thus increasing the security of the circuit.

The PFSM.250.2 also provides higher levels of current stability at high temperatures, due to the use of an optimized internal design. This makes it suitable for applications which experience rapid temperature changes, such as automotive, military and industrial applications. It has also been tested to have a good response time to indicate an alarm when an overload occurs, providing fast and reliable protection of circuits.

Moreover, the PFSM.250.2 has a long electrical life, with no deterioration in performance after more than 200,000 operating cycles. This makes it ideal for applications requiring long operation periods, such as televisions, medical equipment, and home appliances. It also comes with additional features such as overvoltage and ESD protection, providing extra protection to the electronics in the circuit.

Overall, the PFSM.250.2 is a great choice when it comes to PTC resettable fuses. It provides high levels of protection from short-circuit and overvoltage currents, and its long service life makes it suitable for many applications which require reliable current regulation. Its wide temperature range and high current stability make it ideal for applications exposed to rapid temperature changes, making it an essential component for many circuits.

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