PLZ24B-HG3/H Discrete Semiconductor Products

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Diodes are electrical components that allow current to flow in one direction and block it in the opposite direction. Zener diodes are a type of diode that is specifically designed to give a stable and predictable voltage, even when exposed to changes in the current. The PLZ24B-HG3/H is a single Zener diode with an application field and working principle.

Application Field

The PLZ24B-HG3/H single Zener diode is designed for use in digital and analog applications requiring voltage reference or overvoltage protection. The PLZ24B-HG3/H can be used to provide a regulated power supply output, suppress motor noise interference in motor control electronics, protect sensitive devices from overvoltage and transient voltage, and filter out high frequency noise. Generally, this type of Zener diode is suitable for applications such as switching power supplies, laptop adapters, LED drivers, digital circuits, and other applications.

Working Principle

The PLZ24B-HG3/H Zener diode is constructed of two semiconductor layers, one P-type and one N-type, connected by an heavily doped PN junction. When a forward biasing voltage is applied, current is allowed to flow evenly in both directions. When the voltage exceeds the Zener voltage, the PN junction is reversed biased and current can only flow in one direction. This reverse biased state is known as breakdown. In this state, the forward current is limited and the output is prevented from exceeding the breakdown voltage. This is the principle that makes the PLZ24B-HG3/H single Zener diode suitable for regulating and protecting delicate electronic components from overvoltage transients.

Limitations

The PLZ24B-HG3/H Zener diode is designed to regulate the output to a specific breakdown voltage. However, it is important to note that the actual breakdown voltage of the diode may not be exactly the same as the rated voltage due to the manufacturing process. This is usually not a problem for most applications, but it should be kept in mind when selecting a diode. To ensure a more consistent output, it may be necessary to select a diode with a voltage variation tolerance. In addition, the maximum current capacity of the PLZ24B-HG3/H Zener diode is relatively small compared to other types of diodes and should also be taken into consideration when selecting a diode for an application.

Conclusion

The PLZ24B-HG3/H single Zener diode is an important component for regulating and protecting the output of digital and analog circuits. It’s application field include switching power supplies, laptop adapters, LED drivers, digital circuits, and more. Its working principle is based on reverse biasing a PN junction, allowing current to flow in one direction and limiting the forward current when the voltage exceeds the Zener voltage. However, due to the manufacturing process there may be a slight difference between the rated voltage and the actual breakdown voltage of the diode and its maximum current capacity may also be limited.

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