MMSZ4678T1G

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Introduction

MMSZ4678T1G is a single Zener diode from the Zener diode family, designed primarily with high performance to provide stable voltage regulation in regulated power supplies and electronic circuits. This diode is classified as a single component component with a current rating of 1A and a voltage rating of 7.5V. It also features a low forward voltage drop, and is typically used in applications that provide overvoltage protection, signal clamping and Zener voltage regulation.

Application Field

The MMSZ4678T1G is an effective solution for low-voltage applications such as those found in regulated switching power supplies, power supply designs, voltage regulators, and automotive applications. It has a reverse breakdown voltage of 6.7V, enabling it to provide protection against transients and overvoltages in engines, and other automotive systems. Additionally, this diode can be used at higher frequencies in matched pairs to provide a balanced current from a 24V power supply.

In addition to automotive applications, this diode can be used in alternative energy sources such as wind and solar power systems. It provides a reliable source of clamped voltage for PV modules to help protect sensitive modules from voltage overshoot and reduce the overall power transfer losses. It is also ideally suited for several commercial and general purpose linear applications where low voltage is essential.

Working Principle

The Zener diode works on the principle of breakdown of the PN junction. When the diode is in the forward bias mode, the current will flow through the diode. But when the voltage exceeds the zener voltage, the PN junction will break down and the current will continue to flow creating a negative voltage regulator. This is the main principle behind the MMSZ4678T1G single Zener diode.

The MMSZ4678T1G works by allowing a fixed amount of current to flow through the diode, while the reverse voltage is above the Zener voltage rating. The Zener diode provides a constant voltage regulation of 6.7V between the anode and the cathode terminal via current flow across the diode. In this way, the diode acts as a voltage reference, allowing protection from overvoltage transients and providing a reliable reference voltage in circuits.

Conclusion

The MMSZ4678T1G is a single Zener diode from the Zener diode family, designed for low voltage applications. This diode is suitable for applications where it is necessary to provide a reliable voltage reference in a circuit, and can be used in automotive applications and alternative energy sources such as wind and solar power systems. The MMSZ4678T1G works on the principle of PN junction breakdown, providing a constant voltage of 6.7V, and allowing a fixed amount of current to flow through the diode.

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