1N3891R

Single Diodes Overview

The GeneSiC Semiconductor 1N3891R 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 at 12 A and a maximum reverse recovery time of 200 ns. Thermal resistance from junction to case is 2.0 °C/W. Operating and storage temperatures range from -55 °C to +150 °C. The standard configuration has the stud as the cathode, while the 'R' suffix indicates reversed polarity with the stud as the anode.

Single Diodes Feature Summary

• Fast recovery performance with a maximum reverse recovery time of 200 ns
• High surge non-repetitive forward current capability
• Hermetically sealed metal stud mount construction for robust thermal management

Single Diodes Applications

• High reliability power conversion circuits
• Military and aerospace electronic systems
• Industrial rectification applications requiring high temperature stability

Single Diodes Procurement Notes

Verify the specific polarity requirement before procurement. The base model denotes a standard configuration where the stud serves as the cathode. The 'R' suffix designates a reversed polarity variant where the stud functions as the anode. Confirm that the selected part matches the intended circuit topology regarding terminal orientation to ensure correct installation and electrical functionality.

Single Diodes Selection Notes

Select this component when a 200 V blocking voltage and 12 A continuous current are required in a stud-mount form factor. The 200 ns reverse recovery time suits general fast recovery needs. Ensure the mounting surface can maintain the specified thermal resistance of 2.0 °C/W. Verify compatibility with the operating temperature range of -55 °C to +150 °C for the target environment.

Single Diodes Part Context

This device belongs to the 1N3889 through 1N3893 series of silicon fast recovery diodes. All members share identical current ratings and thermal characteristics but differ in reverse voltage capabilities ranging from 50 V to 400 V. The 1N3891R specifically targets applications requiring a 200 V DC blocking voltage within this standardized family.

Single Diodes Replacement Considerations

Compatible substitutes include other parts from the same series such as the 1N3890R or 1N3892R, provided their respective voltage ratings align with the system requirements. Cross-series replacements must match the 12 A current, 200 ns recovery time, and DO-4 package dimensions.