BZX84C39W-7-F

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	39V
Tolerance:	±5%
Power - Max:	200mW
Impedance (Max) (Zzt):	130 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 27.3V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SOT-323
Base Part Number:	BZX84C39

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Introduction

BZX84C39W-7-F is a single Zener diode made by ON Semiconductor. The diode has a breakdown voltage of 5.6V at 1.0mA and can be used in low-voltage applications. It features a low forward voltage drop of 0.9V at 1.0mA and a maximum power rating of 200mW. The BZX84C39W-7-F is available in the industry-standard TO-92 package and is UL recognized, making it suitable for a variety of applications.

Application Field

BZX84C39W-7-F diodes can be used for a variety of functions. It can be used as a voltage reference in applications where a low voltage, low power solution is needed. It can also be used in applications that require protection from overvoltage or reverse current. Additionally, it can be used to regulate voltage in power supplies, as the Zener diode automatically adjusts its voltage to maintain a regulated output.

Working Principle

A Zener diode operates by breaking down at a specific voltage. When an increased voltage is applied across the diode, it starts to conduct in reverse and can dissipate energy to maintain the voltage at its breakdown voltage. This breakdown voltage is known as the Zener voltage and is determined by the doping levels of the semiconductor material used in the diode.The Zener breakdown effect is the key to understanding the operation of a Zener diode. With the forward biased voltage applied, the junction between a P-type semiconductor and an N-type semiconductor creates an electric field. This electric field increases until it passes a critical point, at which point the electric field is strong enough to break the bonds in the semiconductor material. This in turn creates a new path for current flow and reduces the resistance of the junction, allowing current to flow freely.

Conclusion

The BZX84C39W-7-F is a single Zener diode made by ON Semiconductor. It has a breakdown voltage of 5.6V at 1.0mA and features a low forward voltage drop of 0.9V at 1.0mA and a maximum power rating of 200mW. The diode can be used for a variety of functions, including protection from overvoltage and reverse current, voltage reference for low voltage applications, and voltage regulation for power supplies. It operates through Zener breakdown at a specific voltage, which occurs when the electric field passes a critical point and breaks the bonds in the semiconductor material, allowing current to flow freely.

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