VLZ2V4A-GS18

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Diodes are essential components in the world of electronics. They can be used to control the flow of electrical current in a circuit, regulate voltage and even to invert the polarity of a signal. Zener diodes, in particular, are specially designed to function as low-power voltage regulators. The VLZ2V4A-GS18 is a single zener diode that has a wide range of applications in the electronics industry.

Application Fields

The major application field of the VLZ2V4A-GS18 is in voltage regulation. It is usually used in audio power amplifiers to stabilize the output for superior sound quality. It is also used in telecommunication systems as overvoltage protection, ensuring that the sensitive devices in the system are always kept at safe voltage levels. VLZ2V4A-GS18 can also be used as efficient base-emitter stoppers in transistor circuits.

Apart from voltage regulation, the VLZ2V4A-GS18 is also often employed as a limited power source in DC power supplies. Its clamped breakdown voltage is set at 4.7V, meaning that it can easily power small circuits without dissipating too much power. The VLZ2V4A-GS18 is ideal for applications where space and efficiency are at a premium, such as circuit components in portable devices.

Working Principle

The VLZ2V4A-GS18 is a zener diode with a breakdown voltage of 4.7V. The device works on the principle of the "avalanche effect", where the current in the diode suddenly increases when the applied voltage is more than the breakdown voltage.

When a voltage higher than 4.7V is applied to the diode, a strong electric field is generated near the junction, which helps to accelerate free electrons and further increase the current. This sudden increase in the current will cause the breakdown of the junction and result in a large increase in the current.

Since the breakdown voltage of the VLZ2V4A-GS18 is fixed at 4.7V, it can be used as an efficient voltage regulator in circuits without the need of external voltage control. The steepness of the current-voltage characteristic of the diode allows it to limit the output voltage to less than 4.7V, ensuring a stable and reliable voltage output.

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