BZX84B20-HE3-08

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The BZX84B20-HE3-08 Zener diode is a single diode that is composed of two alternating layers of semiconductor materials. The p-n junction between the two layers provides rectifying action when forward biased and Zener action when reverse biased. Essentially, this type of diode helps to regulate voltages by allowing current to pass through when the voltage exceeds a certain threshold.

The BZX84B20-HE3-08 works by allowing current to pass from the anode to the cathode when the cathode becomes positive relative to the anode. When the reverse bias of the diode is higher than the Zener voltage of the diode, then band-to-band tunneling occurs. This is also known as Zener breakdown and it causes a sudden increase in current as the switch between breakdown voltage and low impedance is triggered.

The BZX84B20-HE3-08 has a number of applications. It is primarily used as a voltage regulator in circuits. It can also be used as a temperature compensation element and as a protection element, so as to protect the circuit against excessive voltages. Additionally, it is commonly used in the fields of communication and frequency control and can be found in computer peripherals such as monitors and hard drives.

The BZX84B20-HE3-08 can also be used in rectification circuits. In this application, forward biasing the diode causes voltage to flow in one direction only, and as such, it can be used as a switch. This can be particularly useful for LED lighting applications.

In summary, the BZX84B20-HE3-08 is a single Zener diode that is composed of two alternating layers of semiconductor material. It is designed to regulate voltages by allowing current to pass in one direction only when the voltage crosses a certain threshold. It has various practical applications, however it is primarily used as a voltage regulator in circuits, as a temperature compensation element, as a protection element, or in rectification circuits as a switch.

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