1N5231D

Single Zener Diodes Overview

The Microchip Technology 1N5231D is a hermetically sealed silicon Zener diode designed for high-reliability applications. It features a nominal Zener voltage of 5.1 V with a tight tolerance of 1%. The device is rated for a maximum power dissipation of 0.417 W and utilizes the DO-204AA (DO-7) glass axial package. It operates within an extended temperature range, supporting junction temperatures up to +175 °C, making it suitable for demanding environments requiring stable voltage regulation.

Single Zener Diodes Feature Summary

• Hermetically sealed construction in a glass axial package for environmental protection
• High precision voltage regulation with 1% Zener voltage tolerance
• Extended thermal capability supporting operation up to +175 °C

Single Zener Diodes Applications

• Military and aerospace electronic systems
• High-reliability industrial control circuits
• Precision voltage reference applications

Single Zener Diodes Procurement Notes

Verify the specific suffix 'D' against the manufacturer's current datasheet to confirm exact tolerance and packaging specifications. Ensure the procurement source provides traceability documentation required for hermetically sealed components used in regulated industries. Confirm RoHS status as historical Microsemi/Microchip glass axial parts may have specific compliance designations.

Single Zener Diodes Selection Notes

Select this component when strict voltage accuracy and hermetic sealing are required. The 1% tolerance distinguishes it from standard commercial variants. Consider the 0.417 W power rating for thermal management in enclosed spaces. Verify that the DO-7 package dimensions fit the target PCB or chassis layout constraints.

Single Zener Diodes Part Context

This part belongs to the legacy Microsemi (now Microchip Technology) 1N523x series of Zener diodes. The 'D' suffix typically denotes a tighter tolerance band compared to standard 'B' or 'C' suffixes. These devices are often specified under military standards such as MIL-PRF-19500, ensuring quality and reliability beyond commercial grade requirements.

Single Zener Diodes Replacement Considerations

Direct replacements include other hermetically sealed 5.1V Zener diodes with 1% tolerance in DO-7 packages. Verify compatibility with MIL-PRF-19500/437 specifications if military qualification is mandatory. Cross-reference with Microchip's current equivalent listings for updated manufacturing sources.