1N4138R

Single Diodes Overview

The Microchip Technology 1N4138R is a silicon power rectifier diode designed for high-current applications. It features a maximum DC reverse voltage of 600 V and an average rectified forward current of 70 A. The device exhibits a maximum forward voltage of 1.25 V at 200 A and a leakage current of 25 uA. Packaged in the DO-203AB (DO-5) stud mount configuration, it provides robust performance for industrial power conversion systems requiring reliable single-phase rectification.

Single Diodes Feature Summary

• High current handling capability with 70 A average rectified forward current rating
• Robust reverse blocking voltage up to 600 V for demanding power environments
• Stud mount construction in DO-203AB package for efficient thermal dissipation

Single Diodes Applications

• Industrial power supply rectification
• Motor drive inverter circuits
• Welding equipment power stages

Single Diodes Procurement Notes

Verify the manufacturer marking matches Microchip Technology or authorized predecessor entities like Microsemi. Confirm the DO-203AB stud package type and terminal orientation. Ensure the part number suffix aligns with specific lead configurations if required by the assembly design. Request batch traceability documentation for critical power applications.

Single Diodes Selection Notes

Select this component when high surge current capacity and low forward voltage drop are critical for efficiency. The stud mount style necessitates compatible heatsinking infrastructure. Compare thermal resistance specifications against ambient operating conditions to ensure junction temperature limits are not exceeded during continuous operation cycles.

Single Diodes Part Context

This rectifier belongs to the standard silicon power diode family utilized in heavy-duty electrical systems. It serves as a fundamental discrete semiconductor component for converting alternating current to direct current in high-power industrial settings. The DO-5 package remains a legacy standard for screw-terminal mounting in large-scale power electronics.

Single Diodes Replacement Considerations

Cross-reference with other 600V 70A stud-mount rectifiers from manufacturers such as Vishay or Littelfuse. Verify pinout compatibility and thermal pad dimensions before substitution. Ensure equivalent reverse recovery characteristics if used in switching applications.