1N3172

Single Diodes Overview

The Microchip Technology 1N3172R is a standard recovery rectifier diode housed in the DO-205AB (DO-9) axial leaded package. It features a maximum DC reverse voltage of 800 V and an average forward current rating of 300 A. The device exhibits a maximum reverse leakage current of 10 mA at its rated voltage and a typical forward voltage drop of 1.55 V at 940 A. Designed for high-power applications, it supports a junction operating temperature range from -65°C to +200°C and utilizes stud mounting for thermal management.

Single Diodes Feature Summary

• High current handling capability with a 300 A average forward current rating
• Extended thermal stability supporting junction temperatures up to 200°C
• Robust reverse blocking performance rated at 800 V
• Standard recovery speed suitable for general-purpose rectification

Single Diodes Applications

• Industrial power supply rectification
• Welding equipment output stages
• High-current battery charging systems
• Motor drive rectifiers

Single Diodes Procurement Notes

Verify the specific suffix against official documentation, as the 'R' designation may indicate packaging or reel configuration rather than electrical changes. Confirm RoHS compliance status, as this component family often carries non-compliant markings. Ensure the ordering part number matches the exact datasheet revision to avoid discrepancies in mechanical dimensions or pinout definitions.

Single Diodes Selection Notes

Select this component when designing circuits requiring high surge current capacity and robust reverse voltage blocking. The DO-205AB package necessitates appropriate heatsinking strategies due to the stud mount interface. Evaluate thermal resistance parameters under actual load conditions to ensure the junction temperature remains within the specified -65°C to +200°C operational range during continuous operation.

Single Diodes Part Context

This device belongs to the 1N31xx series of high-power silicon rectifiers manufactured by Microchip Technology. These components are engineered for demanding industrial environments where reliability under high stress is critical. The series offers various voltage ratings while maintaining consistent current handling capabilities across different package options.

Single Diodes Replacement Considerations

Consult official substitution guides for equivalent parts from other manufacturers. Verify that any replacement maintains the same DO-205AB footprint and stud mounting requirements. Ensure the substitute diode meets or exceeds the 800 V reverse voltage and 300 A current specifications.