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Diodes - Zener - Single: ZMY62-GS18 Application Field and Working Principle

ZMY62-GS18 Zener Diodes are a type of single diode designed for use in applications where a regulated, fixed voltage must be obtained from an unregulated incoming voltage. The working principle of such a diode lies in its ability to maintain a constant voltage across the components in a circuit by breaking the line from the incoming voltage source.

Applications

ZMY62-GS18 Zener Diodes are used in a variety of electrical or electronic devices where precise control of voltage or current is required. Examples of commonly used applications include voltage regulating, RF (Radio Frequency) signal modulation, voltage clamping, AC to DC current rectification, over-voltage protection and voltage stabilization.

Design Features

The ZMY62-GS18 Zener Diode is composed of a high performance PN junction which provides excellent stability and reverse avalanche capabilities. This diode can work with voltages ranging from 2.4V~90V, with a maximum leakage current of 10mA and a maximum current of 500mA. Its maximum power rating is 1W and its operating temperature range is from -25°C to 85°C.

Working Principle

In a diode circuit, current can flow in either direction, but the traditional PN junction diode is designed to allow current to flow in only one direction. However, in the case of a Zener diode, the reverse voltage needs to be greater than the Zener voltage in order to break down the PN junction, which is usually kept very low. When the reverse voltage reaches a certain threshold, the PN junction will \'breakdown\' and start to conduct. This maintains a constant voltage across the components in the circuit, thus regulating the incoming voltage source.

At a temperature lower than the Zener temperature, the Zener diode becomes more resistive as the temperature drops, and as the temperature increases, the Zener diode becomes more conductive. This makes the Zener diode particularly useful in applications which require a stable voltage in order to protect the device from sudden changes in temperature.

Conclusion

ZMY62-GS18 Zener Diodes are designed for use in a variety of applications where precise control of voltage is required. These diodes are designed with a high performance PN junction and can withstand a variety of conditions in order to maintain a constant voltage across components in a circuit. By utilizing a breakdown threshold, the PN junction will become conductive and maintain a regulated voltage.

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