5BHLE-50E

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Part Status:	Active

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5BHLE-50E Application Field and Working Principle

Fuses are devices intended to protect electrical equipment from damage due to excessive current. They operate by interrupting the circuit when a hazardous condition develops. 5BHLE-50E fuses are especially designed for use in consumer portable electronics and small power supplies. Filters, rectifiers, integrated circuits, etc., need to be protected from over-currents, often caused by short-circuits, close to the power source, across input and output pins, and transient loads.

The Application Field of 5BHLE-50E Fuses

5BHLE-50E fuses are well suited to many different applications, from consumer electronics to control systems, in terms of their physical size and rated current handling. They are designed specifically for integrated circuits, making them an excellent choice for a wide range of devices.Consumer electronic devices are at particular risk of over-currents, since their power sources are usually weak. 5BHLE-50E fuses have been designed to handle moderate current (up to 50A) without risking damage to the device.In control systems, high currents are common. 5BHLE-50E fuses are suitable for high-power devices, as they are able to protect them from larger currents while occupying a relatively small space.Overall, the 5BHLE-50E fuse is the ideal choice for applications where power requirements are high and device size is a consideration.

Working Principle of 5BHLE-50E Fuses

These fuses use a special glass tube element filled with a fusible alloy. The element is connected to the fuse\'s terminals, and a current-limiting resistor is placed in series with it. When the fuse is installed, the resistor helps maintain a nearly uniform current through the element.Whenever the current increases beyond the rating of the fuse, the element overheats and the fusible alloy melts. This opens up the circuit, thereby eliminating the dangerous over-current condition.Further protection is provided by a time-delay mechanism. When the current exceeds the rating of the fuse, the resistor is unable to maintain the uniform current through the element. This causes the temperature of the element to rise rapidly. As a result, the fusible alloy inside melts gradually, ensuring that the circuit is not opened suddenly and causing any further damage.To reset the fuse, the circuit needs to be opened to remove the excess current. When the circuit is opened, the metal heat sink attached to the element cools, enabling the fusible alloy to solidify, and then the circuit needs to be closed again. The device is then ready for normal operation.

Conclusion

The 5BHLE-50E fuse is a versatile device that can handle high currents while occupying a relatively small space. It is ideal for protecting circuits vulnerable to excess currents, and the time-delay mechanism helps prevent further damage. These features make this fuse an ideal choice for consumer electronics, control systems, and other applications where power requirements are high and device size is a consideration.

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