RXEF020

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PTC Resettable Fuses are an essential category of electronic circuit protection products. The RXEF020 PTC Resettable Fuse is a generic resettable fuse module with a bidirectional current rating of 20 A and a wide operating temperature range. This article provides an overview of the range of applications and working principle of the RXEF020 PTC Resettable Fuse.

Applications

The RXEF020 PTC Resettable Fuse is used in a variety of applications, including power supplies, data processing products, industrial drives, and consumer electronics. It has a wide operating temperature range of -40°C to +125°C, making it suitable for use in applications with extreme temperature conditions. The fuse also offers excellent protection in high-frequency circuits, including protection against EMI/RFI noise caused by circuit interruptions.

The RXEF020 PTC Resettable Fuse is also used in industrial automations and machinery. These industrial environments may include volatile chemicals, high levels of dust, and severe mechanical conditions. The RXEF020 PTC Resettable Fuse is designed to handle these conditions, offering superior performance relative to traditional fuses.

Working Principle

The working principle of the RXEF020 PTC Resettable Fuse is similar to that of a traditional fuse. It is designed to detect short-term, over-current conditions in a circuit, then automatically trip in order to protect the components. Unlike a traditional fuse, the RXEF020 PTC Resettable Fuse can be manually reset when it trips. This means that the circuit can be immediately restored to working order after the fault has been detected and the cause of the fault has been identified and addressed.

The RXEF020 PTC Resettable Fuse also features a built-in thermistor which helps to protect the circuit and components from damage caused by excessive heat. The thermistor works by diverting current away from the circuit when the temperature rises above a predetermined level. This helps to protect the components from being damaged as a result of overheating.

The RXEF020 PTC Resettable Fuse is also designed for use in a variety of automotive systems. The fuse’s bidirectional current rating of 20A makes it suitable for use in automotive electronic systems, where it can provide reliable protection against potential shorts, over-currents, and spikes.

In summary, the RXEF020 PTC Resettable Fuse has a wide range of applications, from consumer electronics to industrial machinery. Its bidirectional current rating of 20A makes it suitable for use in high-frequency circuits and automotive systems. Its thermistor provides additional protection against potential damage from excessive heat, while the manual resetting feature ensures that the circuit can be quickly restored to working order in the event of a fault.

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