RXEF050S

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PTC Resettable Fuses play an important role in protecting electronics from damage due to short circuits, overvoltage, and overcurrent. A PTC Resettable Fuse, such as RXEF050S, is a specialized fuse that can be reset as many times as necessary, making it useful in applications where the fuse may be constantly cycled on and off due to hot-swapping or other normal operations.

RXEF050S is a state-of-the-art polymeric based PTC fuse. It is designed to provide robust protection for appliance electronics with adjustable current and temperature characteristics, low voltage drops, low temperature drift and quick response time. The fuse will trip once it reaches the specified current level and will remain open until the current is reset.

RXEF050S is highly versatile and can be used for an array of residential and commercial applications, including consumer electronics, household appliances, power supplies, and medical devices, among others. It provides reliable over-current circuit protection for hardwired connections, it is ideal for protecting components to safeguard the system from any damage caused by a fault current.

The RXEF050S fuse features a working temperature range of -40°C to +90°C, and is UL Recognized and VDE Certified. It has a maximum voltage of 250V AC/DC, and a rated current of 0.5A for +/-20% tolerance. It has a very low voltage drop when on and fast response time during fault conditions, ensuring that it can withstand even the most extreme conditions.

The working principle behind the RXEF050S is straightforward. It is a thermistor based fuse, meaning it works using resistive heating of a metal wire. As the current flows through the wire, the resulting heat causes it to expand and break, triggering a thermal disconnect that instantly stops the current flow. When the current has been reset, the thermal disconnect automatically closes again, allowing the current to flow again.

The RXEF050S also features a “clamping” function, which, along with the built-in I2t characteristics, ensures it can withstand inrush currents, spikes, and surges. The unique design of the RXEF050S reduces or completely eliminates downtime due to its fast response time and resettable design.

Overall, the RXEF050S is a highly reliable and dependable PTC Resettable Fuse. It provides robust over-current protection for a wide variety of applications, and offers excellent performance and reliability even in the most harsh and extreme conditions. It is UL Recognized and VDE Certified, has a wide operating temperature range, and features a very low voltage drop when on.

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