1N2438

Single Diodes Overview

The 1N2438 is a silicon power rectifier manufactured by Microchip Technology, formerly Microsemi. It is designed as a standard rectifier with a reverse recovery time exceeding 500ns. The device features a 150V repetitive peak reverse voltage rating and supports a continuous forward current of 150A. It utilizes a stud mount configuration within the DO-205AA (DO-8) package, suitable for high-power industrial applications requiring robust thermal management and reliable unidirectional current flow.

Single Diodes Feature Summary

• Constructed from silicon material for high-power rectification
• Features a stud mount design for efficient heat dissipation
• Classified as a standard rectifier with slow reverse recovery characteristics

Single Diodes Applications

• Industrial power conversion systems
• High-current DC power supplies
• Motor drive rectification circuits

Single Diodes Procurement Notes

Verify the manufacturer origin, as the component was originally produced by Microsemi Corporation before its acquisition by Microchip Technology. Confirm the specific package variant matches the DO-205AA (DO-8) specification. Ensure the reverse recovery time classification aligns with system requirements for standard rectifier applications rather than fast-switching scenarios.

Single Diodes Selection Notes

Select this component when high current capacity at 150A is required alongside moderate voltage blocking capabilities of 150V. The stud mount package necessitates compatible mounting hardware and thermal interface materials. Consider the slow reverse recovery characteristic; it is unsuitable for high-frequency switching applications but appropriate for line-frequency or low-frequency power conversion tasks.

Single Diodes Part Context

The 1N2438 belongs to the 1N2436 series of silicon power rectifiers. This series is characterized by standard recovery times exceeding 500ns. The part number follows the JEDEC numbering convention for general-purpose silicon diodes, indicating its role in basic power rectification roles within larger electronic assemblies.

Single Diodes Replacement Considerations

Direct substitutes may include other 150V 150A stud-mount silicon rectifiers from manufacturers such as Vishay or Littelfuse, provided they match the DO-8 package outline and electrical ratings. Verify pin compatibility and thermal resistance values before substitution.