DDZX22D-7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	22V
Tolerance:	±3%
Power - Max:	300mW
Impedance (Max) (Zzt):	30 Ohms
Current - Reverse Leakage @ Vr:	50nA @ 17V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	DDZX22D

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Introduction

The DDZX22D-7 is one of the most technologically advanced forms of single Zener diode. It has a fast response time, low reverse leakage current and is inherently rugged. This makes the DDZX22D-7 one of the most reliable and efficient types of diode available in the modern market.

Application Field of DDZX22D-7

DDZX22D-7 is a very commonly used type of discontinuous conduction mode flyback single Zener diode in a variety of industries. It is mostly used in switching power supplies, point-of-load (POL) converters, automotive systems, telecommunications, and consumer electronics. In a switching power supply application, the DDZX22D-7 serves as the primary output rectification bridge. As the total conduction loss of the DDZX22D-7 is exceptionally low, it can provide the desired output voltage with minimal current and power dissipation. Additionally, the soft recovery of the diode keeps the secondary-side voltage spike low, which further reduces the amount of distortion in the output signal. In a point-of-load (POL) converter, the DDZX22D-7 rectifies the output voltage. In general, the DDZX22D-7 stands out from conventional single Zener diodes due to its higher forward voltage and reverse conduction current. As a result, the output voltage control range of the DDZX22D-7 is wider, giving designers more flexibility when it comes to selecting operating parameters. The DDZX22D-7 is also used in automotive systems and consumer electronics. In the automotive industry, DDZX22D-7 is often used in starter circuits, where it serves as a rectifier to provide the necessary current to start the internal combustion engine. In consumer electronics, the DDZX22D-7 is deployed as protection against power surges and electronic spikes. Its low forward voltage helps to provide more efficient current flow and reduce power consumption, while its low reverse leakage current guards the device from accidental power surges.

Working Principle of DDZX22D-7

The DDZX22D-7 works by controlling the electrical current that flows through it. Thanks to its extremely low conduction losses, it can act as an efficient switch, allowing current to flow in one direction and blocking it in the other.In an ideal situation, the DDZX22D-7’s current-controlling characteristics behave in a linear fashion. This means that its output will be roughly proportionate to the input given. This linearity helps engineers to precisely control the current that passes through the diode, opening up a wide range of application possibilities. In spite of its linear I-V performance, the DDZX22D-7 still exhibits some nonlinearities. This can be observed when the device is operated in reverse-biased mode. In this situation, a Zener breakdown occurs, allowing a certain small current to flow through the device. This current increases exponentially as the applied voltage increases, providing a safe and efficient way of dealing with power overage situations.

Conclusion

DDZX22D-7 is an advanced single Zener diode that is well suited for a wide range of electrical engineering applications. Its fast response time, low reverse leakage current and rugged construction make it an ideal choice for power overload protection. Furthermore, its controlled current flow makes it suitable for use in switching power supplies, point-of-load (POL) converters, automotive systems and more.

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