GDZ9V1B-E3-08

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GDZ9V1B-E3-08 application field and working principle

A zener diode, such as the GDZ9V1B-E3-08, is a type of diode which is characterized by a low breakdown voltage. It is created with a heavily-doped p-type semiconductor and surrounding n-type material connected in a back-to-back structure. This facilitates the passage of current in the same direction, but with a greater resistance in the opposite direction. When a voltage is applied in reverse, the diode will not conduct until the voltage reaches a critical value, at which point it breaks down and allows a high current to pass in a single direction.

Application Field

Zener diodes, like the GDZ9V1B-E3-08, are primarily used as voltage regulators for circuits. They are often used to stabilize a voltage which can vary greatly, by fixing or “clipping” the output at a specified level. Zener diodes are also used as protection devices in circuits, as they can open or short circuit in the event of a power surge or voltage spike. The GDZ9V1B-E3-08 is designed to provide a precise voltage regulation across a broad range of temperatures, making it a versatile component suitable for a number of applications.

Working Principle

The process of voltage regulation is referred to as “zener breakdown”. When reverse bias is applied to the GDZ9V1B-E3-08, its depletion region increases in width. Once the reverse voltage reaches a certain level, the electric field becomes strong enough to break down the neighbouring regions. This allows electrons from the n-type material and holes from the p-type material to meet and rapidly flow in one direction. This creates a path for a large surge of current and limits the output voltage to a fixed value.

Zener breakdown occurs when the applied reverse bias voltage reaches a certain level, known as the “zener voltage”. The zener voltage of the GDZ9V1B-E3-08 is specified at 9V. Once the reverse voltage reaches or exceeds the zener voltage, the diode will breakdown and begin to conduct current in a single direction. This is the primary purpose of a Zener diode, as it limits the output voltage to a precise value.

The GDZ9V1B-E3-08 is designed to be temperature stable, with a temperature coefficient of 2.1V/K. This means that the specified zener voltage will remain relatively constant across a broad range of temperatures. This can be extremely useful for applications which require precise voltage regulation.

Conclusion

Zener diodes, like the GDZ9V1B-E3-08, are specialized devices for voltage regulation and protection. Their operation is based upon zener breakdown, which occurs when a reverse voltage reaches a certain level. At this point the diode conducts current in a single direction and limits the output voltage to a predetermined value. The GDZ9V1B-E3-08 is a temperature-stable component, with a precise zener voltage and low temperature coefficient. This makes it a valuable component for many applications which require precise voltage regulation.

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