SK34BHR5G

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Diodes, such as the SK34BHR5G, are essential components when it comes to both analog and digital circuitry. They are most commonly used as rectifiers, which allow electrical current to flow in one direction while preventing it to flow back the other way. Rectifiers are particularly useful in applications where only uni-directional current flow is required, such as charging a battery. This article will explain the application field and working principle of the SK34BHR5G.

Application Field

The SK34BHR5G is a single power Schottky barrier rectifier designed for use in a wide range of applications including commercial, industrial, and automotive equipment. It is designed to deliver low forward voltage drop, fast switching, and reverse recovery time. The device is particularly useful for applications which require low-loss in electrical systems or high-efficiency switching, such as power supplies, DC-to-DC converters, and automotive systems. The device can handle a maximum forward current of 3 Amps and a peak reverse voltage of 50 Volts. The device is also RoHS compliant, making it an attractive choice when it comes to efficient and environmentally friendly rectification.

Working Principle

A rectifier, such as the SK34BHR5G, works by converting alternating current (AC) to direct current (DC) energy. This is achieved by the use of a PN junction diode, which is placed in the circuit in such a way that only current flowing in one direction can pass through. When AC current flows in one direction, it is allowed to pass through the diode, but when it begins to flow in the other direction, it is blocked. This allows the device to regulate and control the flow of electricity so that unidirectional current is produced.

When a voltage pulse is applied to the PN junction diode, the diode can either conduct or be reverse biased. If it is reverse biased, then it will block the current. When it is forward biased, the diode will behave as a closed switch, allowing current to flow. This occurs because when the diode is forward-biased, the valence electrons present in the PN junction cross the junction and recombine on the other side, reducing the barrier potential and allowing current to flow.

In the SK34BHR5G, Schottky diodes are used instead of regular PN junction diodes due to their higher switching speeds and better electrical characteristics when compared to the latter. When current flows in the forward direction, the Schottky diode has the capability to conduct more current than the PN junction diode. This is because the lower barrier potential present in the Schottky junction reduces the voltage drop across the device and makes it possible for higher current to flow through the device.

Therefore, the SK34BHR5G\'s rectifier works by allowing a uni-directional current to flow through the device, while maintaining a low voltage drop due to the presence of the Schottky diode. The device is capable of handling a high forward current and reverse voltage, making it a reliable choice for a wide range of applications.

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