1N1398

Single Diodes Overview

The Microchip Technology 1N1398 is a standard silicon power rectifier diode designed for high-current applications. It features a maximum repetitive peak reverse voltage of 150 V and an average forward rectified current rating of 100 A. The device utilizes a stud mount configuration within the DO-205AA (DO-8) package, supporting a maximum non-repetitive surge current of 1.6 kA. With a maximum forward voltage drop of 1.2 V, it serves as a robust solution for general-purpose rectification in industrial and power supply circuits requiring reliable high-amperage performance.

Single Diodes Feature Summary

• High current handling capability with a 100 A average forward rectified current rating
• Robust surge protection with a 1.6 kA maximum non-repetitive forward surge current
• Standard recovery characteristics suitable for general-purpose rectification tasks

Single Diodes Applications

• Industrial power supply units requiring high current rectification
• General-purpose DC power conversion systems
• Heavy-duty electrical equipment rectifier circuits

Single Diodes Procurement Notes

Verify the manufacturer origin, as the 1N1398 designation has been associated with multiple entities including Microsemi and Microchip due to corporate acquisitions. Confirm the specific datasheet version matches your design requirements. Ensure the DO-205AA package compatibility with your mounting hardware. Check for any specific ordering suffixes that may indicate variations in thermal resistance or terminal plating. Validate authenticity through authorized distribution channels to avoid counterfeit components.

Single Diodes Selection Notes

Select this component when a standard recovery diode with 100 A continuous current capacity is required. The 150 V reverse voltage rating defines the maximum blocking capability. Consider the stud mount package for efficient heat dissipation in high-power environments. Evaluate the 1.2 V forward voltage drop against system efficiency targets. Ensure the thermal management strategy accommodates the power dissipation at full load conditions.

Single Diodes Part Context

The 1N1398 belongs to the family of high-current silicon power rectifiers. Originally developed by Microsemi Corporation, the product line was integrated into Microchip Technology following acquisition. These devices are characterized by their rugged construction and ability to handle significant surge currents, making them distinct from low-power signal diodes. The DO-205AA package provides a standardized mechanical interface for industrial mounting solutions.

Single Diodes Replacement Considerations

Direct substitutes must match the 100 A current, 150 V voltage, and DO-205AA package. Verify equivalent forward voltage and surge ratings. Cross-reference with other manufacturers' high-current stud-mount diodes if original stock is unavailable.