BZG03B120-HM3-18

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Introduction

The BZG03B120-HM3-18 (hereinafter referred to as the "Component") is a Zener diode designed for single voltage regulation applications. As such, it is commonly used for the protection of electrical equipment from surprisingly large high voltage transients. In addition to its ability to shunt current away from the load in order to protect it from burnout, the Component can also provide precise voltage regulation that helps maintain the exact predetermined operating conditions of the load.

Application Field

The Component is widely used in a variety of power supply and voltage regulation applications, both in consumer electronics and industrial applications such as telecoms, medical electronics, and cars. These devices are also used in conjunction with power MOSFETs to ensure efficient power conversion, and as over-voltage protection components for various electronics devices. They can also be used as reverse-polarity protection devices.

Working Principle

The BZG03B120-HM3-18 Component operates on the principle of junction breakdown, where the current flowing through its electrodes can suddenly increase by several orders of magnitude when the voltage across them exceeds certain specified levels. This is referred to as Zener sublimation and allows the Component to regulate voltage by keeping it within certain tolerances.

Once the voltage across the Component exceeds the Zener breakdown voltage (Vz), the diode enters the breakdown region and a large current flows through it. As such, the voltage across the Component is kept at a constant level close to the breakdown voltage (Vz) regardless of the input voltage. This constant voltage is the result of the dynamic balancing between the forward current and the reverse current flowing through the Component. Thus, the Component is able to provide precise voltage regulation for a load.

Conclusion

The BZG03B120-HM3-18 is a single voltage regulation Component designed for a variety of power and voltage regulation applications. Its working principle is based on Zener breakdown, where the current suddenly increases by several orders of magnitude when the voltage across the electrodes exceeds certain levels. This phenomenon allows the Component to provide precise voltage regulation for the load. Thus, it is widely used in consumer electronics and industrial applications alike.

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