1N3879

Single Diodes Overview

The GeneSiC Semiconductor 1N3879 is a silicon fast recovery rectifier diode housed in a DO-4 (DO-203AA) stud mount package. It features a repetitive peak reverse voltage of 50 V and a continuous forward current rating of 6 A. The device exhibits a maximum forward voltage of 1.4 V at 6 A and a maximum reverse recovery time of 200 ns. It supports an operating junction temperature range from -55 °C to 150 °C with a thermal resistance of 2.5 °C/W.

Single Diodes Feature Summary

• High surge non-repetitive forward current capability
• Fast recovery characteristics for efficient switching
• Stud mount construction for effective heat dissipation

Single Diodes Applications

• High frequency rectification circuits
• Free wheeling diode applications
• Inverter and converter topologies

Single Diodes Procurement Notes

Verify the specific suffix designation when ordering, as the 'R' variant indicates reversed polarity where the stud functions as the anode rather than the cathode. Confirm that the required voltage rating matches the 50 V specification, as this part belongs to a series covering up to 400 V. Ensure mounting hardware compatibility with the 10-32 UNF thread on the DO-4 package before procurement.

Single Diodes Selection Notes

Select this component for designs requiring robust high surge handling and fast switching speeds within a stud-mount form factor. The 200 ns recovery time suits general fast recovery needs, while the 6 A current rating defines its power handling limits. Consider the thermal resistance of 2.5 °C/W for heatsink calculations to maintain junction temperatures within the specified -55 °C to 150 °C operational window.

Single Diodes Part Context

This device is part of the 1N3879 through 1N3883R series manufactured by GeneSiC Semiconductor. The series shares identical physical dimensions and electrical characteristics except for the repetitive peak reverse voltage, which scales from 50 V to 400 V across the lineup. All variants utilize the same DO-4 package and offer comparable forward voltage and recovery performance.

Single Diodes Replacement Considerations

Direct substitutes include other 50 V, 6 A fast recovery diodes in the DO-4 package. Verify that any replacement maintains the 200 ns maximum reverse recovery time and 1.4 V forward voltage drop. Ensure the alternative device supports the same 2.5 °C/W thermal resistance and operating temperature range.