1N4138

Single Diodes Overview

The Microchip Technology 1N4138 is a silicon power rectifier diode designed for high-current applications. It features a maximum repetitive reverse voltage of 600V and supports a forward current rating of 70A. The component utilizes a DO-203AB (DO-5) screw-mount package, ensuring robust mechanical stability in demanding environments. This device is engineered to provide reliable performance in power supply circuits requiring efficient AC-to-DC conversion with high surge current handling capabilities.

Single Diodes Feature Summary

• High current capacity suitable for industrial power applications
• Robust screw-mount construction for secure installation
• Silicon-based construction for thermal stability

Single Diodes Applications

• Industrial power supply systems
• AC to DC rectification circuits
• General-purpose power rectification

Single Diodes Procurement Notes

Verify the manufacturer designation carefully, as the 1N4138 part number has been transferred between entities including Microsemi Corporation and Microchip Technology. Confirm the specific datasheet version and electrical parameters match your design requirements, particularly regarding the 600V reverse voltage and 70A forward current ratings. Ensure the package type corresponds to the DO-203AB standard for proper mounting compatibility.

Single Diodes Selection Notes

Select this component when high current rectification is required in a ruggedized form factor. The screw-mount DO-203AB package offers superior mechanical integrity compared to leaded alternatives. Consider the 600V reverse voltage rating to ensure adequate margin for peak inverse voltage conditions in the target circuit. Evaluate thermal management needs given the 70A continuous current capability.

Single Diodes Part Context

The 1N4138 belongs to the family of silicon power rectifiers manufactured by Microchip Technology and formerly Microsemi Corporation. It is distinct from small-signal switching diodes often sharing similar numbering conventions. The device is classified under general-purpose rectifiers and is housed in the DO-203AB package, which is also referred to as DO-5. This classification places it within the broader category of discrete semiconductor power devices used in energy conversion.

Single Diodes Replacement Considerations

Cross-reference with other manufacturers offering DO-203AB packaged rectifiers with equivalent 600V and 70A ratings. Verify pinout and mechanical dimensions for direct replacement. Note that some sources may list conflicting specifications; prioritize the official Microchip or Microsemi datasheet for accurate substitution data.