GDZ20B-E3-18

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GDZ20B-E3-18 Application Field and Working Principle

Introduction

GDZ20B-E3-18, also known as Zenner diode or voltage reference diode, is a type of Diode. It is a semiconductor device with several molecular layers between a PN junction, designed for controlling current and voltage. As a semiconductor device, GDZ20B-E3-18 is characterized by its exceptional high power capability and high switching speed.The technological advances in the past decade has led to the development of this new species of diode and is finding increasing application in the development of various new electrical products. By utilizing the various properties of these powerful devices, they can be used in many different applications.

Application Field

GDZ20B-E3-18 is mainly used as voltage reference or voltage regulation devices in various applications. They are often used in applications where a constant or steady voltage is required. This is due to the fact that these devices can maintain a constant voltage over a wide range of current. Examples of these applications include, burglar alarms, security systems, automotive equipment, power voltage regulators, power inverters, signal routing and detecting circuits. Besides, the combination of GDZ20B-E3-18 with other electronic components can be used to form complex circuit. An example of such circuit may include combination of a Zener diode with a transistor, a signal diode and a resistor, to form a voltage regulator. This type of circuit is often employed in electronic devices such as computers, phones and electronic games.

Working Principle

The basic GDZ20B-E3-18 works in reverse bias, as do all other Zenner diodes. It has a heavily doped N-type semiconductor region (cathode) in contact with a lightly doped P-type semiconductor region (Anode) and is able to maintain the voltage drop in the junction stable over a wide range of current. This is because, when the device is powered, the material in the PN junction will become depleted and the electrons will flow from the N-type materials to the P-type materials, creating a conductive path.When the voltage is below the reverse biased voltage, current can flow through the Zener diode and the output voltage is stable. However, due to the Zener effect, when the voltage crosses the breakdown voltage, the current breaks down and the output voltage begins to increase. This is because the depleted material absorbs staggering amounts of current and the current produces a strong electric field above the breakdown voltage.

Conclusion

GDZ20B-E3-18 is a type of diode which is capable of maintaining a stable voltage over a wide range of current. Its versatile capabilities make it suitable for many applications in automotive, security and computer systems. It differs from other types of diodes as it works in reverse-bias, allowing current to flow when the voltage crosses the breakdown voltage. Once the voltage is above the breakdown voltage, the device experiences a strong electric field and the output voltage increases, thus providing the stability needed in the application.

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