RXEF375K

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PTC Resettable Fuses are a type of non-destructive electronic circuit protection devices. These fuses are designed to detect a fault, or over current, in an electrical circuit and interrupt the current, thereby protecting delicate electronic components and wiring from damage. The RXEF375K, specifically, is a small form-factor, Low Resistance, High Temperature PTC Resettable Fuse that is designed for use in a variety of power supply, telecom, and computer monitor applications.

The RXEF375K is a low-resistance, fast-acting Resettable Fuse that consists of two components: an electro-thermal cut-off element welded to a ceramic substrate. It has a maximum current rating of 3.75A, a maximum voltage rating of 16V, and it can withstand temperatures up to +125°C. The fuse operates on the principle of a negative temperature coefficient (NTC) resistive element. At low current levels, the NTC element has low electrical resistance, and current can flow unrestricted. However, when current exceeds the rated value, the heat generated causes the NTC element to increase in resistance, eventually reaching a point where the current is interrupted.

When the fault current is interrupted, the fuse element cools down and returns to its initial resistance state and the circuit can be re-energized. The resetting temperature of the RXEF375K is approximately 120°C, making it suitable for use in applications where higher temperatures may be present. The fuse is also self-resetting, meaning it does not require any user action for resetting and can be re-energized with the flip of a switch. This makes it faster and easier to protect electronic circuits than manually resetting fuses.

The RXEF375K is a highly reliable and effective circuit protection solution. It is small and compact, making it suitable for use in a variety of applications, particularly those with space constraints. It is cost effective and can be used multiple times, making it ideal for applications that require a low total cost of ownership. Additionally, it is UL certified and meets many of the standards set by global safety institutions, helping to ensure the safety and quality of the product.

The RXEF375K is designed to protect delicate electronic components in a wide range of power supply, telecom, and computer monitor applications. It is especially useful for protecting circuits that are subject to high in-rush currents or resistive heating, such as motors, transformers, and power supplies. The fuse can also be used in systems that are designed to operate safely at high temperatures, such as motor control circuits, LED drivers, and battery packs.

The RXEF375K is a compact, cost effective, and reliable PTC Resettable Fuse designed to protect electronic circuits from overloads and short-circuits. Its combination of fast-acting, high-temperature, and low-resistance design features make it an ideal solution for protecting circuits from electrical faults and overheating. It is UL certified and meets many of the standards set by safety institutions across the globe, ensuring its quality, reliability, and safety.

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