1N3172R

Single Diodes Overview

The Microchip Technology 1N3172R is a standard recovery rectifier diode designed for high-power applications. It features a maximum DC reverse voltage (Vr) of 800 V and an average rectified current (Io) of 300 A. The device utilizes a DO-205AB (DO-9) axial leaded package with stud mounting capability. Key electrical characteristics include a forward voltage (Vf) of 1.55 V at 940 A and a reverse leakage current of 10 mA at 800 V. It operates within a junction temperature range of -65°C to 200°C and belongs to the standard speed category with recovery times exceeding 500 ns.

Single Diodes Feature Summary

• High current handling capability rated at 300 A average rectified output
• Robust voltage blocking performance up to 800 V DC reverse voltage
• Extended thermal operating range supporting junction temperatures up to 200°C
• Standard recovery speed suitable for general-purpose power conversion

Single Diodes Applications

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

Single Diodes Procurement Notes

Verify compliance requirements prior to ordering, as this component does not meet RoHS standards. Confirm that the DO-205AB package dimensions align with the target PCB or chassis mounting layout. Ensure thermal management solutions accommodate the specified junction temperature limits during operation. Cross-reference datasheet specifications against system voltage and current demands to validate suitability for the intended application environment.

Single Diodes Selection Notes

Select this component when high average current capacity and robust voltage ratings are required for heavy-duty rectification tasks. The standard recovery characteristic makes it appropriate for lower-frequency switching applications where fast transient response is not critical. Consider the stud-mount option if direct chassis cooling is necessary to maintain optimal junction temperatures under continuous load conditions.

Single Diodes Part Context

The 1N3172R is part of the broader 1N31xx series of high-power rectifiers manufactured by Microchip Technology. This series provides reliable solutions for industrial and commercial power electronics requiring durable semiconductor components. The device shares common design principles with other members of the family, focusing on high current density and thermal stability in axial leaded packages.

Single Diodes Replacement Considerations

Consult official substitution lists for equivalent parts within the same product family. Verify pinout compatibility and thermal resistance values before replacing existing units. Ensure that any substitute component meets or exceeds the original 800 V and 300 A specifications.