1N2138

Single Diodes Overview

The Microchip Technology 1N2138 is a standard recovery rectifier diode designed for high-power applications. It features a maximum DC reverse voltage of 600 V and an average forward current rating of 70 A. The device utilizes a DO-5 (DO-203AB) axial leaded package with stud mounting capabilities, ensuring robust mechanical stability in demanding environments. Key electrical characteristics include a forward voltage drop of 1.25 V at 200 A and a maximum reverse leakage current of 25 µA at 600 V. The junction temperature range spans from -65°C to +200°C, supporting operation under extreme thermal conditions.

Single Diodes Feature Summary

• High thermal stability with a junction temperature range extending up to 200°C
• Robust mechanical construction utilizing stud mounting within the DO-5 package
• Standard recovery speed suitable for general-purpose rectification tasks

Single Diodes Applications

• Industrial power supply rectification
• Welding equipment output stages
• Heavy-duty motor drive systems

Single Diodes Procurement Notes

Verify the specific manufacturer suffix or revision code when ordering, as availability may vary between original Microchip production and authorized distributors. Confirm that the DO-5 stud mounting configuration matches your heatsink interface requirements. Ensure compliance with RoHS directives if required by your assembly process, noting that older stock may differ in environmental specifications.

Single Diodes Selection Notes

Select this component when high current handling and wide operating temperature ranges are critical. The 70 A rating supports substantial load currents, while the 600 V blocking capability suits medium-voltage AC-to-DC conversion. Consider the physical size and stud mounting needs compared to surface-mount alternatives for PCB layout constraints.

Single Diodes Part Context

This component belongs to the legacy 1N series of high-power silicon rectifiers, widely used in industrial electronics. It serves as a fundamental building block for converting alternating current to direct current in heavy machinery. The DO-5 package provides a reliable connection method for high-current paths where solder joints alone might be insufficient.

Single Diodes Replacement Considerations

The Vishay VS-1N2138A is a documented alternative offering similar 600 V and 60 A ratings. Verify that the replacement's forward voltage and leakage current specifications align with your circuit design before substitution.