1N1203AR

Single Diodes Overview

The Microchip Technology 1N1203AR is a standard recovery rectifier diode designed for high-power applications. It features a maximum repetitive reverse voltage of 300 V and an average forward current rating of 12 A. The device exhibits a typical forward voltage drop of 1.2 V at 30 A and a maximum non-repetitive peak surge current of 250 A. Operating within a junction temperature range of -65°C to +200°C, it utilizes a stud mount configuration in a DO-203AA (DO-4) package.

Single Diodes Feature Summary

• High thermal stability with a maximum junction temperature of 200°C
• Robust surge handling capability for transient overload protection
• Stud mount construction for efficient heat dissipation

Single Diodes Applications

• Industrial power supply rectification
• DC motor drive circuits
• Welding equipment power stages

Single Diodes Procurement Notes

Verify the specific suffix AR against the manufacturer datasheet to confirm packaging and material compliance details. Ensure the procurement channel provides original manufacturer documentation to validate authenticity. Confirm RoHS status requirements as this series may not be compliant. Check lead times due to potential manufacturing delays.

Single Diodes Selection Notes

Select this component when a single-phase standard recovery rectifier with high thermal endurance is required. The 12 A continuous current rating suits moderate to high power conversion tasks. Verify that the mounting hardware supports the stud mount interface and that the circuit design accommodates the 300 V reverse voltage limit.

Single Diodes Part Context

This part belongs to the S/R204 series of silicon rectifiers manufactured by Microchip Technology. It is a legacy component often used in industrial environments where reliability under extreme temperatures is critical. The DO-4 package provides a standardized footprint for bolt-down installation on heatsinks.

Single Diodes Replacement Considerations

Consult official substitution guides for equivalent parts from the same series. Verify pinout compatibility and thermal resistance characteristics before replacing.