DDZ8V2BQ-7

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	8.2V
Tolerance:	±3%
Power - Max:	310mW
Impedance (Max) (Zzt):	8 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 6.5V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123

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Introduction

The DDZ8V2BQ-7 is a single Zener diode, a type of diode that permits current to flow in either direction but is designed to break down when a certain voltage threshold is reached. It is typically used in voltage regulation and reverse-bias applications. This article examines the different applications of the DDZ8V2BQ-7 and describes how it works.

Types of DDZ8V2BQ-7

The DDZ8V2BQ-7 is a single Zener diode, which refer to diodes designed to break down when the voltage exceeds a certain threshold. There are two main types of single Zener diode – those with a reverse leakage current (labeled IZM on the diode’s datasheet) of less than 5mA (standard Zener diodes) and those with a greater than 5mA leakage current (labeled VZ on the datasheet). The DDZ8V2BQ-7 falls into the latter category, with a nominal Zener voltage of 8V and a maximum reverse leakage current of 25mA.

Applications of the DDZ8V2BQ-7

The DDZ8V2BQ-7 is typically used in voltage regulation circuits due to its designed breakdown voltage. This breakdown voltage represents the peak voltage that the diode will allow to pass through it before it begins conducting current in the reverse direction. This feature helps to ensure that the voltage in a circuit or system is constant, as the reversed current cancels out any fluctuations in the main source voltage. The DDZ8V2BQ-7 is also utilized in reverse-bias applications, as the diode’s breakdown voltage makes it suitable for such use. Reverse-bias applications require the application of a voltage of the opposite polarity to that of the device, and the DDZ8V2BQ-7’s design ensures that it can handle such reverse polarity voltage efficiently.Other common applications for the DDZ8V2BQ-7 include voltage protection, which is the use of the diode as a safeguard in instances where the voltage may be exceeded. This can be used in a variety of situations, from providing protection for a circuit from a surge in voltage to guarding against voltage spikes caused by the reliability of the power supply.

Working Principle of the DDZ8V2BQ-7

The working principle behind the DDZ8V2BQ-7 is relatively simple. When an in-phase voltage is applied across the diode, the current created by the voltage only flows in a single direction, either inwards or outwards. But when the voltage surpasses the diode’s breakdown voltage, the diode starts to conduct in the opposite direction, providing power to the circuit and ensuring that the voltage remains stabilized. The reason for this orientation is due to the depletion region that is created in the Zener diodes thanks to the different electrical properties of the semiconductor material. This depletion region creates an electric field that opposes any change in the current flowing through, which in turn ensures that the voltage remains constant.

Conclusion

The DDZ8V2BQ-7 is a single Zener diode that has various applications, especially in voltage regulation and reverse-bias configurations. Its working principle is based on the formation of a depletion region in the diode by its semiconductor material, which in turn creates an electric field that works to oppose any changes in current or voltage. With its wide range of applications and efficient working principle, the DDZ8V2BQ-7 is sure to be a reliable choice for many projects that require a reliable and stable voltage.

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