BZX384-C3V9,115 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3.9V
Tolerance:	±5%
Power - Max:	300mW
Impedance (Max) (Zzt):	90 Ohms
Current - Reverse Leakage @ Vr:	3µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 100mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323
Base Part Number:	BZX384C3V9

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Introduction

BZX384-C3V9,115 is a Zener single diode manufactured by Diodes, which is the most common type of diode used for various electronic circuits and applications. It is a three-terminal electronic component designed to allow electric current to flow in only one direction, or what is known as unidirectional electrical current. The purpose of the diode is to regulate the current that flows through it, protecting the downstream components from potentially damaging over-currents.

Application Field：

The BZX384-C3V9,115 Zener single diode has a wide range of applications, including:

• Voltage Regulation: The device can be used to regulate voltage levels in a circuit. It is commonly used in an AC-DC power adapter, where it prevents the current from exceeding a certain level and thus protects the device from over-voltage damage.
• Noise Filter: The BZX384-C3V9,115 Zener single diode is also used as part of a noise-filtering circuit, where it can help to reduce unwanted noise and interference in a system.
• Clamping: The diode can also be used in conjunction with other components, such as capacitors, to form a clamping circuit, allowing for precise control over a circuit\'s voltage level.
• Power Control: The Zener single diode can be used to regulate and control power in a circuit, ensuring that it is not over- or under-powered.
• Over-Voltage Protection: Finally, the device can be used to provide over-voltage protection, in order to prevent the components of a circuit from being damaged by a voltage spike.

Working Principle：

The BZX384-C3V9,115 Zener single diode works by allowing current to flow in one direction only, from the anode to the cathode. When a reverse voltage, usually more than 5.1V, is applied to the diode, it will begin to “open” and allow electric current to flow in the reverse direction. This reverse current will be limited to a certain amount, depending on the diode\'s design and the voltage applied to it. The diode will then maintain the reverse current until the reverse voltage is removed, at which point it will close again. This feature is what allows the BZX384-C3V9,115 Zener single diode to be used as a voltage regulator and noise filter, as it can help to regulate and control the current flowing in a circuit while also blocking out unwanted noise and interference.

Conclusion

The BZX384-C3V9,115 Zener single diode is a versatile and reliable device with a wide range of applications, from power control and voltage regulation to use in noise filtering circuits. It works by allowing electrical current to flow in one direction only and providing over-voltage protection by limiting the current in the reverse direction. Overall, the BZX384-C3V9,115 Zener single diode is a useful and reliable component for use in many different electronic circuits.

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