GDZ20B-HG3-18

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The GDZ20B-HG3-18 is a single zener diode designed for use in a variety of applications in medium-power operation.

Zener diodes are a type of diode that allow for reverse current, up to a specific voltage. When the reverse bias voltage is greater than the diode\'s zener breakdown voltage, the diode starts conducting current in the reverse direction. This voltage is known as the breakdown voltage or ‘Zener Voltage’ and the reverse conduction is called Zener Regulation.

The GDZ20B-HG3-18 is a medium-power single zener diode with a Zener breakdown voltage of 18V. Its construction is based on both a PN junction, which acts as a conventional diode when biased in the forward direction, and a unique diode structure, which creates the Zener breakdown voltage. It features a maximum power dissipation of 500mW, a maximum forward voltage of 1.2V and a maximum reverse current of 400µA.

The GSZ20B-HG3-18 is widely used in applications such as voltage regulation, over-voltage protection and other applications that rely on Zener breakdown. It can be used in high-power voltage regulator circuits, power converters and other medium-power applications where stable voltage regulation is required to maintain performance.

The working principle is simple. When the zener diode is forward biased, the current passes through the PN junction as it normally would. When the reverse bias voltage is greater than the Zener breakdown voltage, the diode\'s junctions break down and current is allowed to pass in the reverse direction. This is called Zener regulation and it allows the diode to provide a constant, regulated voltage output.

The GDZ20B-HG3-18 is an excellent choice for use in medium-power voltage regulation circuits and other applications. It is robust and reliable, and its Zener breakdown voltage of 18V allows it to provide stable voltage regulation in a wide range of applications. It also features a low maximum reverse current and a low forward voltage drop, providing efficient operation in many applications.

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