SZMM3Z3V3ST3G

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3.3V
Tolerance:	±2%
Power - Max:	300mW
Impedance (Max) (Zzt):	95 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323

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Introduction

The SZMM3Z3V3ST3G Series Zener diodes are a family of small signal Zener diodes designed for temperature stability and low power operation. They are available in a variety of voltage ratings and provide fast switching speeds, making them ideal for signal conditioning and other applications that require high-frequency signal responses. Zener diodes are used as a voltage regulator, an overvoltage protection device and a reverse-polarity clamp. They provide a stable signal to help maintain power supply and noise integrity.

Application field

SZMM3Z3V3ST3G Series Zener Diodes are used in various applications for signal conditioning, voltage regulation, and overvoltage protection. The most common applications include consumer electronics, automotive, industrial and military systems.Consumer Electronics: Zener diodes are commonly used in consumer electronics for voltage regulation, signal conditioning and power supply design. For instance, television sets, computer systems, audio/video equipment, integrated circuits and home appliances all use zener diodes to maintain a stable output voltage.Automotive: Zener diodes are instrumental in the designs of automotive systems, protecting ECU components from overvoltage conditions. They are also used to protect against short circuit, reverse polarity and overcurrent conditions that can occur in the automotive environment.Industrial: Zener diodes are used to provide noise immunity in industrial circuits and systems. With their high frequency switching, they are suitable for applications requiring tight noise control parameters.Military: Zener diodes are used to protect sensitive electronic devices from overvoltage conditions and adverse temperature changes in military systems. They are reliable and durable, making them well suited for use in military applications.

Working Principle

SZMM3Z3V3ST3G series zener diodes are designed with an internal diode junction. When a voltage is applied across the diode, it becomes forward-biased and starts to conduct. As the voltage continues to rise, the forward current continues to rise until it reaches the zener breakdown voltage, at which point the zener diode immediately diverts the excess current to ground.In this way, the voltage across the zener diode does not exceed the breakdown voltage, even if the applied voltage is higher. This is the working principle of the SZMM3Z3V3ST3G Zener Diode.

Conclusion

The SZMM3Z3V3ST3G Series Zener Diode is an ideal solution for applications requiring voltage regulation, signal conditioning and overvoltage protection. It has a wide range of applications in consumer electronics, automotive, industrial and military systems. It is designed with an internal diode junction and works on a principle of voltage regulation by diverting current to ground if the applied voltage exceeds the breakdown voltage.

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