1N1128RA

Single Diodes Overview

The Microchip Technology 1N1128RA is a standard recovery rectifier diode belonging to the S/R204 series. It features a maximum DC reverse voltage of 600 V and an average forward current rating of 12 A. The device utilizes a DO-4 (DO-203AA) axial leaded package designed for panel or stud mounting applications. Key electrical characteristics include a maximum forward voltage drop of 1.2 V at 30 A and a reverse leakage current of 10 µA at 600 V. The component supports a wide operating junction temperature range from -65°C to +200°C, ensuring reliability in demanding thermal environments.

Single Diodes Feature Summary

• High-temperature operation capability with a junction temperature range extending up to +200°C
• Robust power handling with a 12 A average forward current rating
• Standard recovery speed suitable for general-purpose rectification applications

Single Diodes Applications

• Industrial power supply rectification
• High-voltage DC conversion circuits
• Heavy-duty automotive electronics

Single Diodes Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm exact mechanical and electrical tolerances. Confirm RoHS compliance status as historical data indicates potential non-compliance for certain variants. Ensure the ordering information matches the required mounting style and package dimensions specified in the latest datasheet revision.

Single Diodes Selection Notes

Select this component when high surge current capacity and elevated temperature stability are required. The DO-4 package facilitates secure mechanical attachment for high-power dissipation scenarios. Evaluate the 600 V reverse voltage rating against peak inverse voltage requirements in the target circuit design to ensure adequate safety margins.

Single Diodes Part Context

The 1N1128RA is part of the broader S/R204 series of silicon rectifiers manufactured by Microchip Technology. This series is engineered for robust performance in industrial and automotive sectors. The component represents a legacy standard replacement option for older designs requiring high-current axial diodes with proven long-term reliability.

Single Diodes Replacement Considerations

Consult official substitution guides for equivalent parts within the same voltage and current ratings. Verify pinout compatibility and thermal resistance characteristics before implementing any alternative components in existing board layouts.