RUSBF155

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PTC Resettable Fuses are electrical components that can protect circuits from excessive current, preventing them from being overloaded or damaged from power surges. They are commonly used in computers, televisions and sound systems. The RUSBF155 is a type of PTC Resettable Fuse specifically designed to provide dependable short circuit and over-current protection.

Application Field

The RUSBF155 is ideal for applications that require current limiting and over-current protection, such as electrical circuits in an automobile, small appliances, industrial equipment, home electronics and medical equipment. It can also be used for protection of electronic circuits such as USB ports, game consoles, computers and other electro-mechanical devices. It is designed to operate in temperatures ranging from -55 °C to 125 °C, and is available in a variety of ampere ratings, ranging from 0.2A up to 10A.

Working Principle

The RUSBF155 works by using a PTC element as the main component. When a short circuit or over-current occurs, the element increases its resistance to limit the current. The internal temperature of the fuse will rise due to increased resistance, and if the current is not shut off, the fuse will eventually open and shut down the circuit. The fuse can then be reset by cooling it down to its original temperature. This feature allows it to be reset multiple times, making it an effective and reliable over-current protection solution.

The PTC element used in the RUSBF155 is designed to provide reliable and stable protection, and is manufactured using an advanced fabrication process that allows it to maintain its performance even after repeated power cycles. The fuse also comes with a built-in indicator, which will turn off when the fuse is open, allowing it to be easily monitored.

PTC Resettable Fuses provide reliable short circuit and over-current protection, making them an ideal solution for a wide variety of applications. The RUSBF155 is specially designed to provide dependable protection in a wide range of temperatures, making it a popular choice for many applications.

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