PLZ3V9A-G3/H Discrete Semiconductor Products

Series:	Automotive, AEC-Q101, PLZ
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3.92V
Tolerance:	±4.59%
Power - Max:	960mW
Impedance (Max) (Zzt):	50 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-219AC
Supplier Device Package:	DO-219AC (microSMF)

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Introduction

The PLZ3V9A-G3/H is a single, surface-mount, 500 mW Zener diode from Panasonic. It has a wide range of applications and is designed to provide robust performance and improved stability for many applications.

Features

The PLZ3V9A-G3/H features a high reverse voltage of 9V, a low forward voltage of 9V, and a low reverse leakage current of 4 mA. It also includes a guard ring structure, which helps improve its surge resistance and reliability, as well as its reverse leakage current and reverse voltage protection characteristics. Additionally, its advanced technology provides improved stability and extended life of the device.

Application Field

The PLZ3V9A-G3/H is often used in applications where it is necessary to prevent:-Frequency instability and/or overload-Improper voltage potentials-Damaged equipmentIt is often used in:-DC-DC converters -DC-AC inverters-Power supply circuits-Battery charging circuits-DC lighting circuits-PC and office automation equipment-Memory backup circuits-Voltage regulator circuits-Surge protection circuits

Working Principle

The PLZ3V9A-G3/H is a Zener diode, meaning that it is a device made of P- and N-type semiconductor material which is designed to provide current control when a reverse voltage is applied.When a forward voltage of 9V is applied to the PLZ3V9A-G3/H, it will conduct current in forward direction as a normal diode. However, when a reverse voltage of 9V is applied, the diode will stop current flow and provide a low voltage drop (0.8 to 1.2V). This reverse behavior of the diode is called Zener Breakdown, and it is what makes it useful for protection against over-voltage and surges in circuits.The PLZ3V9A-G3/H also features a guard ring structure, which further improves its surge resistance. The guard ring structure uses additional semiconductor material to provide a controlled increase in current when the reverse voltage is greater than 5V, thus protecting the device from over-voltage and surges.

Conclusion

The PLZ3V9A-G3/H is a single, 500 mW Zener diode from Panasonic with a wide range of applications and excellent protection characteristics. It has a reverse voltage of 9V, a forward voltage of 9V, and a reverse leakage current of 4 mA. Additionally, its guard ring structure provides improved surge resistance and extended life of the device. It is often used in circuits such as DC-DC converters, power supply circuits, voltage regulator circuits, memory backup circuits and surge protection circuits.

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