EDZVT2R3.9B Discrete Semiconductor Products

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EDZVT2R3.9B Application Field and Working Principle

EDZVT2R3.9B is a single diode type of Zener diode. In a basic circuit, it is composed of two PN junction, the two PN junction can act as diodes or as voltage-regulated elements depending on the application.

Application Fields of EDZVT2R3.9B

EDZVT2R3.9B is suitable for use in a variety of applications, from low-voltage power supply to high-voltage power control. It has a wide range of applications, including:

• Voltage regulation for car power supplies.
• Voltage regulation for medical equipment power supplies.
• Power factor correction in solar/wind power systems.
• Voltage-regulated power supply for telecommunication equipment.
• Stabilization of high-voltage circuit in electrical appliances.

Working Principle of EDZVT2R3.9B

EDZVT2R3.9B is composed of two PN junction. When a forward bias voltage is applied, the two electrodes connected to each other will both have a positive bias, so that a current can be conducted through the diode, but when the voltage across the diode is greater than the Zener voltage (Vz) of the device, it will enter the reverse bias operation, which is the Zener breakdown operation. In this operation, a large current will be flowing through the device, and the voltage between the two ends of the diode will remain constant at the Zener voltage. This is the characteristics of Zener diode.

In other words, the EDZVT2R3.9B can be used as the voltage regulator of a power supply, when the supply voltage is too high, the Zener diode will enter the Zener breakdown state, so that the voltage is kept constant. This can protect the other components in the circuit.

Conclusion

EDZVT2R3.9B is a single diode type of Zener diode with a wide range of applications. It has a wide range of applications, such as voltage regulation in car power supplies, voltage regulation in medical equipment power supplies and power factor correction in solar/wind power systems. The working principle of EDZVT2R3.9B is that when the voltage across the diode is greater than the Zener voltage, it will enter the Zener breakdown operation and keep the voltage between the two ends of the diode constant at the Zener voltage.

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