1N1346B

Single Diodes Overview

The Microchip Technology 1N1346B is a general-purpose single silicon rectifier diode designed for high-current applications. It features a maximum average forward rectified current of 16A and a repetitive peak reverse voltage of 400V. The device utilizes a stud mount configuration within the DO-203AA (DO-4) package, facilitating efficient thermal dissipation through direct mounting to heatsinks. This component is engineered for robust performance in power conversion circuits requiring reliable unidirectional current flow under demanding electrical conditions.

Single Diodes Feature Summary

• High current handling capability suitable for heavy-duty power applications
• Robust stud mount construction for effective thermal management
• General-purpose rectification with standardized voltage ratings

Single Diodes Applications

• Industrial power supply rectification
• Battery charging systems
• DC motor drive circuits

Single Diodes Procurement Notes

Verify the manufacturer origin, as multiple entities produce this part number. Confirm the specific datasheet version matches your design requirements. Ensure the physical stud dimensions align with your mounting hardware. Check for RoHS compliance status if environmental regulations apply to your assembly process.

Single Diodes Selection Notes

Select this component when a 16A continuous current rating and 400V blocking voltage are required. The stud mount package is essential for applications where board-mounted packages cannot dissipate sufficient heat. Consider the thermal resistance characteristics of the mounting interface to ensure junction temperature limits are not exceeded during operation.

Single Diodes Part Context

This diode belongs to the standard rectifier family, often referenced by legacy JEDEC numbering. It serves as a fundamental building block in power electronics, replacing older glass-passivated variants with more durable silicon constructions. The DO-4 package is a traditional industry standard for high-power discrete semiconductors.

Single Diodes Replacement Considerations

Cross-reference with other manufacturers offering identical 16A/400V stud-mount specifications. Verify pinout compatibility and mechanical footprint dimensions before substitution. Ensure thermal performance metrics match or exceed the original design constraints.