DDZ22DSF-7

Introduction

The DDZ22DSF-7 belongs to the category of Diodes-Zener-Single, which are semiconductor devices used in a wide range of applications. They are designed to provide a precise, stable voltage reference. The Zener type diodes, also called breakdown diodes, can be used to control the overshoot of the output voltage at the load. The DDZ22DSF-7 is commonly used in high voltage power supply, voltage regulation and noise reduction circuits.

Application Field

The DDZ22DSF-7 is mainly used for stabilizing voltage in various applications. It is a popular diode for overvoltage protecting circuits and power supply voltage conversion. This makes it ideal for automotive applications, especially in areas such as lighting, which must be reliable in order to avoid accidents and damage to the electrical system. In applications like cell phone chargers, the DDZ22DSF-7 can be used to regulate the input voltage, protecting the battery from overcharging. It can also be used in automotive sound systems to prevent static or other noises in radios or suppressors.

Working Principle

The DDZ22DSF-7 diode has two junctions, an anode side and a cathode side. One side of the diode is the Zener region, designed to be a stable reference voltage. When the voltage applied to the anode is greater than the Zener voltage, the Zener region is forward biased and then Zener breakdown occurs. This allows a reverse current to flow through the diode and reduces the voltage. By controlling the voltage applied to the diode, the device can be tuned and adjusted to provide the most accurate reference voltage.

Technical Parameters

The DDZ22DSF-7 provides a stable voltage reference over a wide temperature range. The device has a 6.8V nominal Zener voltage and features a 30V maximum Zener junction breakdown. The forward voltage is 0.5V maximum and the maximum reverse current is 40mA at 6.8V. It has a power dissipation range from 200mW to 500mW, depending on the ambient temperature. In addition, it has a storage temperature range of -55°C to +150°C, with a thermal resistance of 200°C/W from junction to case.

Conclusion

The DDZ22DSF-7 is a widely used diode for voltage regulation application. It provides a stable output over a wide temperature range, and its high rated reverse current makes it suitable for a wide range of applications. The device is easy to operate and its design makes it very reliable and efficient.