1N4731ATR Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	4.3V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	9 Ohms
Current - Reverse Leakage @ Vr:	10µA @ 1V
Operating Temperature:	-65°C ~ 200°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-41
Base Part Number:	1N4731

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Introduction

The 1N4731ATR is a low-voltage Zener diode. It is designed to provide high protection from voltage spikes in a variety of high-frequency circuits and applications. This diode type provides superior stability and reliability during high-voltage transients. It also features excellent thermal stability and low capacitance. This device is available in a wide range of voltage options, making it a versatile option for any application.

Application Field

The 1N4731ATR has been designed for use in a wide variety of electronic and electrical applications, including:

• Power supplies
• Automotive electronics
• Optical and Plasma displays
• Security systems
• Telecommunications systems
• Power conditioning and distribution

This diode is also suitable for a wide range of 16V and 24V power supply circuits, including AC/DC, DC/DC, VRM, and high frequency switching and audio applications.

Working Principle

The 1N4731ATR diode works according to the Zener principle. When there is a voltage leakage or reverse bias, the diode will hinder any further rise in the voltage by clamping it to a steady level, known as the Zener breakdown voltage.In order to obtain the best protection, it is recommended to use an integrated circuit with a series of 1N4731ATR diodes with different breakdown voltages. When the voltage reaches the breakdown ,the diode will start to conduct and will thus protect the circuit.The diode\'s ability to protect the circuit from high-frequency transients is based on the principle of negative feedback. The 1N4731ATR diode prevents the current through it from increasing by blocking the effects of the voltage peak. Thus, protection is achieved by both reducing the current flowing through the circuit and preventing further voltage rise.

Conclusion

The 1N4731ATR is a robust, reliable, and cost-effective Zener diode, suitable for a variety of applications. Its low capacitance and excellent thermal stability make it an ideal choice for applications that require high-voltage protection. By using this diode with different breakdown voltages, it is possible to obtain superior protection from voltage spikes in a wide range of electronic and electrical applications.

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