1N4046

Single Diodes Overview

The Powerex Inc. 1N4046 is a general-purpose silicon rectifier diode designed for high-current applications. It features a stud mount configuration within the DO-205AB (DO-9) package, facilitating robust chassis mounting. The device supports an average forward current of 275 A and withstands a maximum repetitive peak reverse voltage of 150 V. It operates reliably across a temperature range from -65 °C to 190 °C junction temperature.

Single Diodes Feature Summary

• High current handling capability with 275 A average forward current rating
• Robust mechanical construction using stud mount design in DO-205AB package
• Wide operating temperature range extending up to 190 °C junction temperature

Single Diodes Applications

• General purpose rectification circuits
• Power supply systems requiring high current capacity
• Industrial equipment utilizing chassis mounted components

Single Diodes Procurement Notes

Verify manufacturer origin as both Powerex and Microchip Technology listings exist for similar part numbers. Confirm exact voltage rating matches project requirements, as variants like 1N4044R differ significantly. Check datasheet revision dates to ensure compatibility with specific thermal and electrical constraints. Validate package dimensions against existing board layouts before procurement.

Single Diodes Selection Notes

Select this component when high average forward current is required alongside moderate reverse voltage blocking. The stud mount style necessitates compatible heatsinking infrastructure. Ensure the application environment supports the specified junction temperature limits. Compare against alternative series if lower voltage ratings suffice, as other parts in the family offer different voltage thresholds while maintaining similar current capabilities.

Single Diodes Part Context

This diode belongs to the standard rectifier family characterized by high current density and rugged packaging. It serves as a fundamental power conversion element in industrial electronics. The DO-205AB form factor distinguishes it from surface-mount alternatives, prioritizing thermal dissipation and mechanical stability over compactness in circuit design.

Single Diodes Replacement Considerations

The 1N4046R is a documented variant with identical electrical specifications but potentially different suffix designation. Verify pinout and mounting hole patterns match exactly when substituting. Cross-reference with 1N4044R only if voltage requirements align, noting its 50 V rating differs substantially.