TZQ5223B-GS18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	2.7V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	30 Ohms
Current - Reverse Leakage @ Vr:	75µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	SOD-80 Variant
Supplier Device Package:	SOD-80 QuadroMELF

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Introduction

TZQ5223B-GS18 is a single Zener diode that is designed for general purpose and power applications. This Zener diode is suited for a variety of uses, including surge protection, low reverse current applications, and stabling voltage. The working principle of the TZQ5223B-GS18 is based on electrical current clipping and rectifying properties of a diode. It uses an intrinsic resistor and a zener diode to create a stable current flow.

Application Field

The TZQ5223B-GS18 is most commonly used in the protection of sensitive electronic devices, such as mobile phones and computer systems. Its uses include the following:

• Surge protection - It provides up to 17V of protection against overvoltages or electrical surges.
• Low reverse current - It can handle up to 3.2A of current without creating a large amount of heat.
• Stabilizing voltage - It can maintain a stable voltage, which is essential for sensitive electronics.
• Color printing - It can be used as a color filter for LCD and plasma displays.
• Long service life - The Zener diode can last up to 10 years, thanks to its rugged construction.

Working Principle

The TZQ5223B-GS18 works by using a voltage-dependant resistor to maintain a constant voltage. The resistor is composed of a PN junction diode, which is placed in series and reverse biased to the voltage source. When the voltage exceeds the breakdown voltage – typically 6V – the diode creates a high resistance path and current flow is restricted. This creates a regulated output and prevents overvoltage conditions.

The Zener diode also works in the reverse direction, allowing it to be used as a regulator. When the input voltage drops, the diode creates a low resistance path and current flow is unrestricted. This allows the diode to supply the necessary voltage to maintain a stable output.

TZQ5223B-GS18 also features low reverse leakage current, which further helps maintain a stable voltage level. It also has a temperature coefficient of 10Ω, which makes it ideal for a variety of applications.

Conclusion

The TZQ5223B-GS18 is a single Zener diode that is designed for general purpose and power applications. It is most commonly used in the protection of sensitive electronic devices, such as mobile phones and computer systems. Its working principle is based on electrical current clipping and rectifying properties of a diode. It can maintain a stable voltage and supply the necessary voltage to maintain a stable output. Overall, the TZQ5223B-GS18 is an extremely useful and reliable Zener diode.

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