PFRA.500

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PTC (Positive Temperature Coefficient) Resettable Fuses are commonly used in many types of circuit protection, where overcurrent or overvoltage protection is required. While they look similar to other common fuses, such as fuses with glass tubes, blade-style ceramic fuses or glass tube fuses with a ceramic body, they function very differently from traditional fuses. This article will discuss the application field and working principle of the PFC.500 Resettable Fuses.

The PFC.500 Resettable Fuses are most commonly found in consumer electronics, such as computers, phones, cameras, and other small household appliances. They are designed to protect against both short-circuits and overloads, but unlike traditional fuses, they are designed to "trip" or open the circuit when an overcurrent or overvoltage occurs, preventing catastrophic failure or fire. When the fault is cleared and the fuse is no longer overloaded or shorted, the fuse will reset itself, allowing current to flow once again.

The working principle of the PFC.500 Resettable Fuses lies in its unique design. The fuse is made up of two elements: a metal element and a thermistor element. The metal element is a non-adjustable component that will open the circuit when an overcurrent or overload condition is present. The thermistor element is a temperature-sensitive component that will open the circuit when it becomes heated beyond a certain threshold. When either the metal element or thermistor element trips, it will open the circuit, preventing further overcurrent or overload.

The PFC.500 Resettable Fuse is designed to be used in AC power circuits. It is rated up to 600 Volts and can handle a variety of current ranges from 0.2 to 16 Amps. The reset time of the fuse is typically short, typically much faster than other types of fuses, allowing it to reset quickly in the event of an overcurrent or overload condition. In addition, the PFC.500 Resettable Fuse is not affected by high surges or transients and can continue to be used in many high-surge or transient applications.

The PFC.500 Resettable Fuse is an excellent choice for many types of circuit protection applications. It is designed to be highly reliable, easily reset and fast-acting, making it an ideal choice in consumer electronics, industrial, and automotive applications. Furthermore, its short reset time allows it to protect against both fault-induced and short-term overloads with minimal time delay. The PFC.500 Resettable Fuse is also very economical, making it an attractive choice for many types of circuit protection.

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