BZX84B27-HE3-18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	27V
Tolerance:	±2%
Power - Max:	300mW
Impedance (Max) (Zzt):	80 Ohms
Current - Reverse Leakage @ Vr:	50nA @ 18.9V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3

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Introduction

The BZX84B27-HE3-18 is a single-junction Zener diode that offers maximum protection for stable voltage and current in electronics. It is capable of dissipating up to 6 watts of power, making it ideal for applications such as telecommunications, computers, and automotive systems. The device is designed with a glass passivated junction and is available in a variety of package styles.

Features

The BZX84B27-HE3-18 offers many features that make it a great choice for protecting electronics from both over-voltage and current surges. The device has a reverse voltage of 18V, a maximum reverse current of 2mA, and a maximum dissipation power of 6 Watts. It also has an operating temperature range of -55°C to +125°C. The device is UL recognized and is AEC-Q101 qualified for automotive use. Additionally, it is Pb-free and RoHS compliant.

Application Fields

The BZX84B27-HE3-18 is used in a variety of application fields, such as electronic communication, automotive electronics, computers, and other industrial equipment. It is ideal for applications that require protection from over-voltage or over-current conditions, such as over-temperature protection. Additionally, it can be used as a reference voltage for precision voltage regulation, voltage frequency switching, and over-current protection.

Working Principle

Zener diodes are a type of diode with a reversed-biased junction that is designed to work at a certain reverse-bias voltage. When the BZX84B27-HE3-18 is subjected to a reverse voltage that exceeds its breakdown voltage, it will start to conduct in the reverse direction, which allows for the current to be regulated. This allows it to be used as a reference voltage for precise voltage regulation. Additionally, the device is designed to dissipate power, so it can be used for over-temperature protection as well.

Conclusion

The BZX84B27-HE3-18 is a single-junction Zener diode designed to provide maximum protection and reliable performance in a wide range of applications. It has a reverse voltage of 18V, a maximum reverse current of 2mA, and a maximum dissipation power of 6 Watts. Additionally, it is UL recognized, AEC-Q101 qualified, and RoHS compliant. The device is most commonly used in electronics communication, automotive electronics, computers, and other industrial equipment, where it provides protection against over-voltage and current surges, as well as over-temperature protection.

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