1N4732G

Overview

The Microsemi Corporation 1N4732G is a single silicon Zener diode with a nominal voltage of 4.7 V and a tolerance of 10%. It features a maximum power dissipation of 1 W and operates within a temperature range of -65 °C to 150 °C. The device utilizes a DO-204AL glass axial-lead package, which is hermetically sealed. Key electrical characteristics include a maximum impedance of 8 Ohms and a reverse leakage current of 10 µA at 1 V.

Feature Summary

• Hermetically sealed glass construction for high reliability
• Unidirectional single Zener configuration
• Axial lead mounting terminals

Applications

• Voltage regulation in high-density circuits
• Applications requiring low parasitic effects
• High reliability environments specified by source control drawings

Procurement Notes

Verify the specific suffix 'G' against official Microsemi documentation to confirm exact tolerance and packaging specifications. Ensure compatibility with existing circuit designs regarding thermal management and voltage ratings. Confirm availability status as distribution data may vary.

Selection Notes

Select this component when a 4.7 V reference is required in a robust, hermetically sealed axial package. Consider the 10% tolerance and 1 W power rating for appropriate load conditions. Verify that the DO-204AL form factor fits the mechanical constraints of the target assembly.

Part Context

This part belongs to the standard 1N47xx series of Zener diodes manufactured by Microsemi. These devices are widely used for voltage regulation and protection. The 1N4732 variant specifically provides a 4.7 V breakdown voltage, serving as a fundamental building block in analog and digital power supply circuits.

Replacement Considerations

Surface mount equivalents such as MLL4732A or SMAJ4732A are electrically equivalent but differ in package type. Direct pin-to-pin replacements must be verified against the original schematic requirements.