DDZ22DQ-7

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Diodes are electronic components made of semiconductor materials and are one of the basic electrical components of electronic equipment. They have the characteristics of rectification, conduction, and typing, and can be used in various electronic components. Zener diode is a special diode, which is an avalanche diode, and can be reversely biased. When it is reversely biased, it has a stable reverse breakdown voltage, which is usually used as a voltage regulator in power supply. The DDZ22DQ-7 is a kind of single Zener diode.

Application Field of DDZ22DQ-7

DDZ22DQ-7 is an ultra-small package Zener diode, which can directly absorb and dissipate heat through the wetting body, and has better thermal stability performance. It is mainly used in the miniaturization and volume reduction of electronic products. It is suitable for power management and application of miniaturized electronic equipment with low power, high reliability, small shape, and small volume.

Working Principle of DDZ22DQ-7

The working principle of DDZ22DQ-7 is similar to that of a normal diode, except that the breakdown voltage of a Zener diode is much lower than that of a normal diode. When the input voltage is lower than the Zener voltage, it will remain in a reverse blocking state and no current will flow; when the input voltage is higher than the Zener voltage, a large current will flow in the circuit and the voltage across the diode is almost constant.

The characteristics of DDZ22DQ-7 are that when the input is reversely biased, the forward current will not change greatly due to the small reverse leakage current, and the impurity content and doping level of the PN junction are designed to have certain requirements. Under the reverse condition, due to the impact of a lot of electron-hole pairs, the breakdown voltage of the diode can be made stable, and the voltage can be stabilized in the range of the Zener voltage.

DDZ22DQ-7 can be made to have different values of Zener voltage according to their application requirements. It has the characteristics of limit breakdown voltage and high accuracy, so it can be used as a small-capacity voltage regulator with DC or AC small signal.

Conclusion

DDZ22DQ-7 is a single Zener diode, which has the characteristics of ultra-small package, small volume, low power, high reliability and strong anti-interference ability. It can be directly absorbed and dissipated through the wetting body and has better thermal stability performance, which can be used for miniaturized electronic products. Under the reverse biased condition, the current will remain stable in a certain range and the voltage across the diode is also not much changed, thus it can be used as a voltage regulator for small signal DC or AC.

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