BZG05C39-HE3-TR

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Diodes - Zener - Single, BZG05C39-HE3-TR, is a type of Zener diode, with a maximum rating of 5.1V and a power dissipation of 500mW. It is a planar silicon power Zener diode with a PN junction having a breakdown voltage range of 6 to 12V.

The application field of BZG05C39-HE3-TR, a Zener diode, is more general purpose. It can be used for voltage regulation, over-voltage protection, and for clipping and clamping circuits. The diode can be used for rectification, wave-shaping, and signal balancing in communications equipment, consumer electronics, automation systems, and computer and peripherals. It can also be used for test and measurement applications.

In terms of working principle, BZG05C39-HE3-TR operates in a reverse-breakdown region. This is due to its reverse breakdown voltage, which is higher than the diode’s forward voltage. When a reverse voltage greater than the reverse breakdown voltage is applied, the diode creates an avalanche breakdown effect. The voltage is then limited, known as the Zener knee voltage. In this region, at the Zener knee voltage, the reverse break current is approximately constant.

It is important to note that the Zener diode operates in a constant current mode when a reverse voltage is applied. This means that when a large reverse current occurs, it will not be in the normal conduction region of the diode. This current helps to maintain the Zener voltage and is known as the Zener knee current.

When using the BZG05C39-HE3-TR, two-terminal voltage regulator, the two terminals are connected in a series between the power source and the load. When power is applied, the diode will reverse bias the load until it reaches its reverse breakdown voltage, which is the Zener knee voltage. At this point, the diode’s resistance is low, resulting in a voltage drop across the diode. The voltage control is then determined by the Zener knee current.

In conclusion, BZG05C39-HE3-TR is a type of Zener diode having a breakdown voltage range of 6 to 12V. It can be used for general-purpose applications such as voltage regulation, over-voltage protection, and signal balancing. In terms of working principle, it operates by creating an avalanche breakdown effect when a reverse voltage greater than the reverse breakdown voltage is applied, limiting it at the Zener knee voltage. It also operates in a constant current mode when a large reverse current occurs and the current helps to maintain the Zener voltage.

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