RGEF700K-2

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Introduction to PTC Resettable Fuses

PTC Resettable Fuses are a type of circuit protection device that works by limiting circuit current in the event of an overload or short circuit. The fuse is designed to reset itself after the over-current is corrected, thereby protecting the circuit from harm and potential fire hazard. The RGEF700K-2, specifically, is a high-performance version of the resettable fuse, with specific application fields and a unique working principle.

Application Fields of the RGEF700K-2

The RGEF700K-2 is designed for applications in which the available rail voltage is between 5v and 24v. It can be used for a wide range of applications, including automotive, consumer electronics, telecommunications, industrial control, computers, and other electrical equipment. Additionally, its slim design makes it especially suited for applications where space is an issue.

The RGEF700K-2 is also suitable for circuit protection in battery applications. Its high-performance features make it well-suited for circuits that require fast and effective resetting after an overload or short circuit event. Its high temperature tolerance and excellent voltage rise capability make it a suitable choice for applications in which high currents and temperatures could potentially be an issue.

Working Principle of the RGEF700K-2

The RGEF700K-2 working principle is based on the same mechanism as traditional resettable fuses. An electrical current is applied to a PTC element, which is a semiconductive element that is sensitive to temperature. When the current reaches a predetermined level, the element heats up and experiences thermal runaway. The element then essentially shorts, and current is diverted to ground, stopping the electrical flow. This PTC element is then reset when the temperature decreases.

The RGEF700K-2 additionally features an over-voltage protection mechanism. This protects the circuit from potential damage from voltage spikes. The RGEF700K-2 also utilizes a thermal cutoff, which is a secondary sense element embedded in the PTC element. This provides additional protection, by tripping the circuit in the event of a prolonged over-current.

Overall, the RGEF700K-2 is a high-performance version of the traditional resettable fuse, with a unique working principle and a variety of applications. Its slim design and additional features make it particularly suited for applications that require a lot of protection in a small amount of space and that could potentially be affected by high currents or temperatures.

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