1N3289A

Single Diodes Overview

The 1N3289A is a standard recovery rectifier diode manufactured by Microchip Technology, not Powerex Inc. It features a maximum DC reverse voltage of 200 V and an average forward current rating of 150 A. The device exhibits a typical forward voltage drop of 1.1 V at 200 A and a maximum reverse leakage current of 200 µA at 200 V. Designed for junction temperatures ranging from -65°C to 200°C, it utilizes a DO-205AA (DO-8) stud mount package with standard recovery characteristics exceeding 500 ns.

Single Diodes Feature Summary

• High current handling capability suitable for heavy-duty power applications
• Robust thermal performance supporting extended operating temperature ranges
• Standard recovery speed optimized for general-purpose rectification

Single Diodes Applications

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

Single Diodes Procurement Notes

Verify the manufacturer designation carefully, as the 1N3289A is produced by Microchip Technology rather than Powerex Inc. Confirm the specific suffix codes if ordering through distributors, as packaging variations may exist. Ensure the procurement channel sources genuine components to guarantee electrical parameters match the official datasheet specifications for reliability in critical power systems.

Single Diodes Selection Notes

Select this component when high average current capacity and moderate reverse voltage blocking are required in a stud-mount configuration. The standard recovery time makes it appropriate for lower-frequency switching applications where fast transient response is not the primary constraint. Evaluate thermal management requirements based on the 150 A rating and ensure the mounting interface matches the DO-205AA flange dimensions.

Single Diodes Part Context

The 1N3289A belongs to the legacy 1N3289 series of high-power silicon rectifiers. This series is characterized by robust construction for industrial environments. While the base part number remains consistent, manufacturers may offer various suffixes indicating specific testing or packaging options. It serves as a fundamental discrete semiconductor component in high-current power conversion architectures.

Single Diodes Replacement Considerations

Consult Microchip Technology documentation for direct cross-references. Verify that any substitute maintains the 150 A current rating, 200 V blocking voltage, and DO-205AA mechanical footprint. Ensure the replacement diode meets or exceeds the original thermal and electrical specifications for the intended application.