PFMU.075.2

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PTC resettable fuses are widely used in many applications, including consumer electronics, automotive electronics, medical electronics, industrial automation, and so on. The PFMU.075.2 is a series of components from a renowned manufacturer of PTC resettable fuses that is designed for use in a variety of applications. This article describes the various applications of the PFMU.075.2 and its working principle.

The PFMU.075.2 PTC resettable fuse is designed for use in protection circuits in applications such as portable electronic devices, consumer electronics, automotive electronics, medical electronics, industrial automation, and other similar systems with power usage of up to 150 volts. The component isCharacterized by maximum working voltage of up to 75 volts, a maximum current rating of 2A, and a thermal shutdown temperature of around 130°C.

The PFMU.075.2 is designed to protect sensitive components from over current and over temperature situations. It does this by quickly detecting any abnormal current or temperature, and then shutting down the circuit to prevent further damage. The main advantage of this component is that it can be easily reset after it has shut down the circuit, without the need to replace the component itself.

The working principle of PFMU.075.2 PTC resettable fuse is based on the PTC thermistor disc technology which utilizes the property of these thermistors to exhibit high resistance when heated above a certain threshold temperature. The component consists of a PTC thermistor disc with a metal contact encapsulated in flame-retardant epoxy. When the current flowing through the component exceeds the rated value, the PTC thermistor disc heats up and its resistance increases, resulting in a reduction in current flow.

In the event of an over current or over temperature situation, the PTC thermistor disc heats up and its resistance increases rapidly, causing the current flow to be cut off. This in turn causes the circuit to be shut down. Once the circuit has been shut down, the thermal energy dissipates, and the thermistor disc cools down, allowing the circuit to be reset. The reset can be accomplished either manually or automatically depending on the type of system.

The use of PFMU.075.2 PTC resettable fuses in protection circuits provides the system with a reliable and efficient means to protect the sensitive components from damage due to over current and over temperature conditions. The component is also more cost effective compared to the use of other protective components such as fuses or circuit breakers in protection circuits.

The PFTU.075.2 PTC resettable fuses can be used in a variety of applications, including consumer electronics, automotive electronics, medical electronics, industrial automation, and other similar systems. The component offers an excellent solution to protect the sensitive components from damage due to over current or over temperature conditions, and can be easily reset after it has shut down the circuit. It is therefore an ideal component for use in protection circuits.

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