1N3891

Single Diodes Overview

The GeneSiC Semiconductor 1N3891 is a silicon fast recovery rectifier diode housed in a DO-4 stud mount package. It features a repetitive peak reverse voltage of 200 V and a continuous forward current rating of 12 A. The device exhibits a maximum forward voltage of 1.4 V and a maximum reverse recovery time of 200 ns. It supports an operating temperature range from -55 °C to +150 °C with a thermal resistance of 2.0 °C/W.

Single Diodes Feature Summary

• High surge capability for robust transient handling
• Hermetically sealed construction suitable for harsh environments
• Standard polarity configuration with the stud serving as the cathode

Single Diodes Applications

• Space applications requiring high reliability
• Commercial and military aircraft systems
• Military vehicle electronics
• Shipboard power systems

Single Diodes Procurement Notes

Verify the specific manufacturer source, as production rights for this series have transitioned between entities such as GeneSiC and Microchip. Confirm the exact suffix designation (e.g., R) to ensure correct lead orientation, as standard and reversed polarity variants exist within the same family. Check for discontinuation notices or lifecycle status updates before finalizing procurement plans.

Single Diodes Selection Notes

Select the 1N3891 when a 200 V blocking voltage and 12 A continuous current are required in a stud-mount form factor. Ensure the application demands a fast recovery characteristic with a maximum 200 ns reverse recovery time. Verify that the thermal management design can accommodate the specified junction-to-case thermal resistance and operating temperature limits.

Single Diodes Part Context

This component belongs to the 1N3889 through 1N3893 series of silicon fast recovery rectifiers. These devices share identical physical packages and current ratings but differ primarily in their voltage blocking capabilities. The series is designed for high-reliability markets including aerospace and defense, offering hermetic sealing and standardized mounting configurations.

Single Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N3891 equivalents to verify pinout compatibility and electrical parameter margins. Ensure substitute components meet the same MIL-PRF-19500/304 qualification standards if used in military or space-rated designs.