2M140ZHA0G

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2M140ZHA0G Application Field and Working Principle

The 2M140ZHA0G is a single Zener diode, a type of diode specifically designed for use in stabilizing and controlling voltage levels. It has been around for decades and is widely used for many industrial, scientific and commercial applications. This article will provide a brief overview of the device and its primary use, as well as its working principle.

Description

The 2M140ZHA0G is a single Zener diode, so called because it is designed to maintain a steady voltage level. It is manufactured in the widely used 3-pin package, which features two anode and one cathode pin. By reversing the device\'s polarity, it can operate as either a rectifier or a voltage regulator. The device is specified for a full reverse voltage of 8.0V, and it has a breakdown voltage of 7.3V.

Applications

The 2M140ZHA0G has a wide range of applications and is widely used in many industries. Common uses include linear voltage regulation, AC/DC power supplies, switching power supplies, and EMI suppressors. It is also used in circuit protection and polarity reversal. This device is often used in combination with other components in order to form a voltage regulator circuit, such as a flyback transformer circuit.

Working Principle

The 2M140ZHA0G operates on the principle of reverse breakdown voltage. It consists of a PN junction, meaning that a P type material is arranged in an N type material. This junction is specially designed to be sensitive to voltage and can trigger breakdown (or banding) of the junction when the reverse voltage applied to the diode exceeds the specified rated value. In this way, the diode can be used to control and stabilize the voltage in a given application.

Upon reaching the Zener breakdown voltage, the device will begin to conduct current in the reverse direction, allowing current to pass through the diode while maintaining the voltage at the fixed Zener voltage. This stabilizes the voltage at the specified level and protects the connected devices from damage due to surges or excessive voltage.

Conclusion

The 2M140ZHA0G single Zener diode is a widely used device for voltage regulation, power supplies, EMI suppression, and circuit protection. It operates on the principle of reverse breakdown voltage, providing a fixed voltage level when the reverse voltage is applied to the diode. This makes it an invaluable tool in many industries and applications.

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