1N1125RA

Single Diodes Overview

The 1N1125RA is a single-phase silicon power rectifier diode manufactured by Microchip Technology. It features a maximum average forward rectified current of 12 A and a repetitive peak reverse voltage of 300 V. The device utilizes a DO-4 (DO-203AA) stud mount package with the case connected to the anode. This component is designed for high-current applications requiring robust thermal management and reliable DC circuit rectification.

Single Diodes Feature Summary

• High current handling capability with a 12 A average forward rating
• Robust construction using silicon element material
• Stud mount configuration for efficient heat dissipation
• Anode-connected case design for direct mounting

Single Diodes Applications

• AC power conversion systems
• Motor speed regulation circuits
• Lighting control equipment

Single Diodes Procurement Notes

Verify the manufacturer designation, as historical production involved Microsemi which was acquired by Microchip Technology. Confirm the specific package variant matches the required DO-4 stud mount specifications. Ensure the electrical ratings align with the system's voltage and current requirements before integration into the final assembly.

Single Diodes Selection Notes

Select this component when a single-phase rectifier with a 12 A continuous current capacity is required. The 300 V reverse voltage rating suits low-to-medium voltage AC-to-DC conversion tasks. The stud mount form factor is appropriate for chassis-mounted installations where thermal conductivity is critical for maintaining performance under load.

Single Diodes Part Context

This part belongs to the standard single diode rectifier category within Microchip Technology's portfolio. It serves as a legacy replacement for earlier Microsemi designs, maintaining identical electrical characteristics and mechanical footprint. The device is widely recognized in industrial electronics for its durability in power supply and motor drive environments.

Single Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with any generic 1N1125 equivalent if sourcing from alternative distributors, ensuring strict adherence to the 12 A and 300 V specifications.