DDZ9681-7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	2.4V
Tolerance:	±5%
Power - Max:	500mW
Current - Reverse Leakage @ Vr:	2µA @ 1V
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
Base Part Number:	DDZ9681

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Introduction

Diodes Zener single, or DDZ9681-7 as commonly referred to, are a type of single phase Zeners which are used in a variety of applications. In their basic form, they are an electrical component consisting of two semiconductor diodes connected in opposite directions. These components are used to create a voltage adjustment in circuits and are used in preference to potentiometers when a more stable output and lower power consumption is desired.

Application Field

DDZ9681-7 are used in a wide range of applications where an adjustable output voltage is required, such as voltage regulators, voltage references and dynamic current drivers. As they require low power consumption this makes them particularly suitable for use in low power circuits. Furthermore, the can be used for their ability to provide a stable and predictable output voltage, something not achievable with a potentiometer or other dynamic type of voltage adjuster.

Advantages

The use of a DDZ9681-7 single-phase Zener can offer advantages compared to other forms of voltage adjustment. As the Zener exhibits a predictable voltage, this makes it easier to accurately adjust the output voltage in a circuit. This can be of significant benefit for applications where an exact and consistent output is needed to ensure performance such as in the field of electronics.Power efficiency is perhaps the major advantage of using DDZ9681-7. The potentiometer inherently uses more power to perform the same task, making it a less favourable option in many cases. The use of a Zener single also gives the ability to make very small budget allocations to the design, making them particularly attractive to those operating on tight budget requirements.

Working Principle

The use of a DDZ9681-7 single phase Zener is based on the principles of a diode. When voltage is applied to the diode, a current of electrons passes through it, creating a characteristic depletion region (the junction). As the voltage is increased beyond the breakdown voltage of the diode, this junction breaks down and an avalanche current is created which can cause a voltage spike. It is this spike which is used in the process of voltage adjustment.In a single phase Zener, two diodes are connected in parallel with each other in opposite directions. When voltage is applied, this creates a bridge which is used to control the voltage adjustment. By varying the voltage across the diodes, the output can be adjusted accordingly.

Conclusion

The use of DDZ9681-7 single phase Zeners can offer many advantages for those in need of an adjustable output voltage in electronic circuits. They are power efficient and highly cost effective, offering a suitable solution for those with tight or limited budget requirements. Furthermore, due to their predictable and consistent output, they can be relied upon when an exact voltage is required to ensure performance.

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