1N1346

Single Diodes Overview

The Microchip Technology 1N1346 is a general-purpose silicon rectifier diode designed for high-voltage applications. It features a maximum repetitive peak reverse voltage of 400V and an average forward rectified current rating of 16A. The device utilizes a stud mount configuration within the DO-4 (DO-203AA) package, facilitating efficient thermal management 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 voltage blocking capability suitable for industrial power supplies
• Robust stud mount construction for effective heat dissipation
• General-purpose silicon rectification for standard AC-to-DC conversion

Single Diodes Applications

• Industrial power supply rectification
• Motor drive circuit protection
• Inverter bridge configurations

Single Diodes Procurement Notes

Verify manufacturer source authenticity as multiple entities list this part number. Confirm specific datasheet revisions with the supplier. Ensure mechanical compatibility with existing heatsink interfaces due to stud mount variations. Request RoHS compliance documentation if required by project specifications. Validate lead times directly with authorized distributors given potential supply chain fluctuations.

Single Diodes Selection Notes

Select this component when high current handling at moderate reverse voltages is required. The stud mount option simplifies thermal design compared to surface-mount alternatives. Consider the physical footprint constraints of the DO-4 package during PCB or chassis layout. Evaluate thermal resistance requirements against ambient operating temperatures to ensure junction temperature limits are not exceeded during continuous operation.

Single Diodes Part Context

This diode belongs to the legacy general-purpose rectifier family, originally standardized for industrial electronics. It serves as a fundamental building block in older power systems still maintained in critical infrastructure. While newer technologies exist, this part remains specified in designs prioritizing proven reliability and ease of mechanical assembly via stud mounting.

Single Diodes Replacement Considerations

Cross-reference with equivalent parts from other manufacturers such as New Jersey Semi-Conductor or Solid State Inc. Verify identical pinout and mechanical dimensions before substitution. Ensure electrical ratings meet or exceed original specifications. Check for any changes in forward voltage drop characteristics that might impact efficiency.