RHEF800

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PTC Resettable Fuses are a type of polymeric positive temperature coefficient (PPTC) fuse devices that are used to protect circuits against overcurrent. The RHEF800 is an application specific product designed for use in the automotive, industrial and consumer electronics markets.

The RHEF800 is a thermally stable device that is designed to automatically protect against inrush currents and short circuits. It offers fast response time and a wide range of current protection up to 800A. The device can be easily integrated into automotive, industrial and consumer electronics applications.

The basic working principle of a PTC Resettable Fuse is simple. Under normal conditions, the PTC fuse remains electrically open, allowing an unrestricted flow of current. When the current reaches a certain level, the device begins to warm up and its resistance increases. As the resistance rises, the current passing through the device is limited. When the temperature reaches its rated value, the device shuts off completely, thus protecting the circuit, and then remains in a current-limited state until the temperature drops below its rated value.

The RHEF800 PTC Resettable Fuse offers several features that make it an attractive choice for several applications. It is mechanically and thermally stable, meaning that it will not suffer from mechanical stress or high temperature fluctuation. It also features an integrated overtemperature protection function, which will shut off the device to prevent damage to the circuit in the event of an over temperature condition. It also offers a very fast response time, enabling it to respond quickly to an overload condition. This makes it suitable for use in applications such as consumer electronics, data centres and automotive applications that require quick and reliable over current protection.

In summary, the RHEF800 PTC Resettable Fuse is a reliable and cost effective way to protect sensitive electronic circuits from overloads and short circuits. It is suitable for automotive, industrial and consumer electronics applications due to its thermal and mechanical stability, fast response time and integrated overtemperature protection function.

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