1N3909AR

Single Diodes Overview

The Microchip Technology 1N3909AR is a standard rectifier diode housed in the DO-203AB (DO-5) axial leaded package. It features a maximum DC reverse voltage of 50 V and an average forward rectified current rating of 50 A. The device exhibits a typical forward voltage drop of 1.4 V at 50 A and a reverse leakage current of 15 µA at 50 V. Its junction temperature range spans from -65°C to +150°C, with a specified reverse recovery time of 150 ns.

Single Diodes Feature Summary

• High current handling capability rated for 50 A average forward rectification
• Robust thermal performance supporting junction temperatures up to 150°C
• Fast recovery characteristics with a 150 ns reverse recovery time
• Standard axial leaded construction suitable for stud or panel mounting

Single Diodes Applications

• Industrial power supply rectification circuits
• Battery charging systems requiring high current capacity
• DC power distribution units
• General purpose high-current rectification tasks

Single Diodes Procurement Notes

Verify component authenticity through authorized Microchip distributors. Confirm the specific suffix AR matches project requirements. Check RoHS compliance status as indicated in official documentation. Validate packaging details against manufacturing change notices. Ensure storage conditions align with semiconductor handling standards.

Single Diodes Selection Notes

Select this component when applications demand high current ratings within a 50 V reverse voltage limit. Consider the DO-203AB package size for mechanical fit constraints. Evaluate thermal management needs given the 150 A peak capabilities and junction temperature limits. Compare reverse recovery specifications against switching frequency requirements.

Single Diodes Part Context

This part belongs to the 1N3909 series of fast recovery rectifiers manufactured by Microchip Technology. The series includes variants with different voltage ratings and suffixes indicating specific manufacturing revisions or testing levels. These components are designed for general-purpose rectification in demanding electronic environments.

Single Diodes Replacement Considerations

Consult official substitution lists for equivalent parts with matching electrical parameters. Verify package compatibility before replacing the DO-203AB housing. Ensure reverse voltage and current ratings meet or exceed original design specifications.