(Pack of 5) 1N4731 – 4.3V 1W Zener Diode

(Pack of 5) 1N4731 – 4.3V 1W Zener Diode 

The 1N4731 is a 4.3V, 1W Zener diode designed for voltage regulation, reference generation, and protection applications. As part of the widely used 1N47xx Zener series, it provides a stable reference voltage and maintains regulation over a range of currents.

It is commonly used in low-voltage regulation, sensor reference circuits, clipper circuits, and general-purpose electronics, offering high reliability and consistent electrical characteristics.

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Features

• Zener Voltage (VZ): 4.3V
• Power Dissipation: 1W
• Test Current (IZT): ~58mA
• Zener Tolerance: Typically ±5% (standard)
• Reverse Leakage: Very low
• Forward Voltage (VF): ~1.1V at 200mA
• Package: DO-41 axial
• Good voltage stability
• Wide operating temperature range
• High reliability silicon Zener diode

Applications

• Low-voltage regulation (around 4.3V)
• Voltage reference circuits
• Over-voltage protection
• Clamping and limiting circuits
• Wave shaping and signal conditioning
• Sensor reference stabilization
• General-purpose hobby and industrial electronics