1N3893AR

Single Diodes Overview

The Microchip Technology 1N3893AR is a high-reliability fast recovery rectifier designed for demanding applications. It features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current rating of 20 A. The device utilizes a stud-mount configuration within the DO-203AA (DO-4) package, supporting a junction temperature range from -65°C to 175°C. Key electrical characteristics include a maximum reverse leakage current of 2 mA at rated voltage and a typical reverse recovery time of 150 ns. This component is qualified per MIL-PRF-19500/308 standards, ensuring performance in aerospace and defense environments.

Single Diodes Feature Summary

• Fast recovery operation with low reverse recovery time for efficient switching
• High thermal stability with extended junction temperature capability up to 175°C
• Robust construction suitable for high-voltage and high-current power conversion
• Qualified for high-reliability military and aerospace specifications

Single Diodes Applications

• Aerospace and defense power supply systems
• Industrial motor drives and inverters
• High-reliability DC-DC converters
• Avionics power management circuits

Single Diodes Procurement Notes

Verify the specific suffix 'AR' against the manufacturer's datasheet to confirm it denotes the standard commercial or military grade variant without additional screening levels. Confirm RoHS status as these high-reliability parts often fall outside standard compliance. Validate the stud-mount terminal compatibility with your heatsink assembly. Ensure the ordering quantity matches the manufacturer's minimum order requirements for this specific packaging type.

Single Diodes Selection Notes

Select this component when a 400V blocking capability and 20A continuous current are required in a stud-mount form factor. The 150 ns reverse recovery time makes it suitable for frequencies where standard rectifiers would exhibit excessive losses. Compare against the 1N3893R for identical electrical performance but verify if the 'A' suffix implies specific lot traceability or testing variations required by your system reliability standards.

Single Diodes Part Context

This part belongs to the 1N389x series of fast recovery rectifiers manufactured by Microchip Technology. It shares the same electrical profile as the 1N3893R but may differ in packaging or qualification level indicated by the suffix. The series is characterized by its ability to handle high surge currents and operate reliably under extreme thermal conditions common in ruggedized electronic equipment.

Single Diodes Replacement Considerations

The 1N3893R is a direct electrical equivalent within the same product family. Verify if the 'AR' suffix requires specific military screening that the 'R' suffix might not cover. Other compatible replacements must match the 400V Vr, 20A Io, and stud-mount mechanical dimensions.