Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	56V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	150 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 43V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123

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MMSZ5263B-HE3-18 application field and working principle

Introduction

The MMSZ5263B-HE3-18 is a Zener single diode designed to be used in high-voltage, low-current applications. With its low leakage current and low power consumption, it is a reliable and efficient solution for voltage regulation and protection. Additionally, its axial lead construction makes it suitable for use in applications such as power line protection, DC to DC converters, and the protection of transistors and transistors in computer systems and other electronic components that require a stable bias voltage.

Application Field

The MMSZ5263B-HE3-18 is a Zener single diode that is suitable for use in applications requiring voltage regulation and protection. Because of its low power consumption, the diode is well-suited for power line protection, DC to DC converters, and the protection of transistors and transistors in computer systems and other electronic components requiring a stable bias voltage. Additionally, it is able to operate in temperatures from -65 to +175 degrees Celsius, making it suitable for high temperature applications.

Working Principle

The MMSZ5263B-HE3-18 is a Zener single diode which works by using the reverse breakdown voltage of its PN junction to regulate voltage. The diode is capable of regulating the voltage across its terminals by dissipating power whenever the voltage across them exceeds the breakdown voltage. This is known as Zener breakdown and is dependent on the Zener impedance– the resistance of the diode in the reverse breakdown region. It’s important to note that the impedance is dependent on the temperature; as temperature increases, impedance decreases. Additionally, when the applied voltage decreases below the Zener voltage, the diode holds a constant voltage across its terminals, resulting in regulation.

Conclusion

The MMSZ5263B-HE3-18 is a Zener single diode designed to be used in high-voltage, low-current applications. Its features make it an effective solution for applications requiring voltage regulation and protection, due to its low leakage current and low power consumption. Additionally, its axial lead construction and temperature range make it suitable for numerous applications. It works by using the reverse breakdown voltage of its PN junction to regulate voltage through Zener breakdown.

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