PLZ27A-G3/H

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	27V
Tolerance:	±3%
Power - Max:	500mW
Impedance (Max) (Zzt):	45 Ohms
Current - Reverse Leakage @ Vr:	200nA @ 19V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	150°C
Mounting Type:	Surface Mount
Package / Case:	DO-219AC
Supplier Device Package:	DO-219AC (microSMF)

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Introduction

The PLZ27A-G3/H diode is a single junction Zener diode that is widely used in applications such as AC/DC switching, power supplies, and power control. This diode has a high breakdown voltage that allows it to work effectively at a wide range of voltages, making it particularly suitable for applications where isolation is required.

Features

The most prominent feature of the PLZ27A-G3/H diode is its high breakdown voltage. This diode has a maximum Zener voltage of 27V, making it ideal for applications where isolation is required. In addition, this diode has a high temperature rating of 175°C, a low voltage coefficient of 3.2 mV/V, and a low forward voltage drop of about 0.4 V.Another important feature of the PLZ27A-G3/H diode is its reverse breakdown voltage. This diode has a reverse breakdown voltage of 200V, making it suitable for use in AC/DC switching and power supplies. The diode also has a high leakage current, making it suitable for use in current limited applications.

Construction and Working Principle

The PLZ27A-G3/H diode is constructed from a p-type silicon body sandwiched between two metal electrodes. When a forward voltage is applied to the device, electrons from the p-type silicon body are repelled away from the junction, creating an electrical field. This electrical field creates a reverse bias voltage across the junction, which in turn creates a Zener voltage.When a forward voltage is applied to the device, it will start conducting once the Zener voltage has been reached. This Zener voltage is what allows the diode to effectively isolate the source and load from each other. The higher the Zener voltage of the diode, the better the device is at isolating the two.

How it Works in Practice

The PLZ27A-G3/H diode is typically used in applications such as AC/DC switching and power supplies. In AC/DC switching, the diode is used as a switching device for controlling the flow of current. It allows the current to either flow in one direction, or to be switched off entirely. This allows for efficient control of the amount of power being consumed by a device.In power supplies, the PLZ27A-G3/H diode is used to regulate the voltage output of a power supply. The diode is connected in series with the power supply’s output and is used to create a Zener voltage. This Zener voltage helps to regulate the voltage output of the power supply, ensuring that the output is within the specified range.

Conclusion

The PLZ27A-G3/H diode is a single junction Zener diode that is widely used in applications such as AC/DC switching and power supplies. This diode has a high breakdown voltage, a high temperature rating, a low voltage coefficient, and a low forward voltage drop. The diode is constructed from a p-type silicon body and is used to regulate the voltage output of a power supply. It is also used as a switching device in AC/DC switching applications.

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