UH3DHE3_A/I

Single Diodes Overview

The UH3DHE3_A/I is a surface mount ultrafast rectifier manufactured by Vishay General Semiconductor - Diodes Division. It utilizes an oxide planar chip junction and is housed in a DO-214AB (SMC) package. The device is AEC-Q101 qualified for automotive applications and meets MSL level 1 standards. Key electrical parameters include a maximum repetitive peak reverse voltage of 200 V, a maximum average forward rectified current of 3.0 A, and a peak forward surge current of 80 A. The typical reverse recovery time is 25 ns, with a maximum instantaneous forward voltage of 1.05 V at 3.0 A.

Single Diodes Feature Summary

• Ultrafast recovery characteristics designed for high-frequency switching operations
• Oxide planar chip junction construction for enhanced reliability
• Low profile package suitable for automated placement processes

Single Diodes Applications

• Secondary rectification in AC/AC converters
• Freewheeling applications in DC/DC converters
• High temperature consumer electronics circuits
• Automotive electronic systems requiring AEC-Q101 qualification

Single Diodes Procurement Notes

Verify the specific ordering suffix to confirm the package quantity and reel diameter. Confirm that the HE3 designation indicates RoHS compliance and AEC-Q101 qualification status. Ensure the component matches the required DO-214AB footprint and polarity marking orientation during procurement validation.

Single Diodes Selection Notes

Select this component when a 200 V reverse voltage rating and 3.0 A continuous current capacity are required. The ultrafast recovery time makes it suitable for high-frequency conversion topologies. Verify thermal management requirements against the specified junction-to-ambient thermal resistance for the intended operating environment.

Single Diodes Part Context

This part belongs to the UH3 series of surface mount ultrafast rectifiers from Vishay. The series includes variants with different voltage ratings, specifically the UH3B for 100 V and UH3C for 150 V. All variants share similar mechanical dimensions and recovery time specifications within the DO-214AB package.

Single Diodes Replacement Considerations

Direct substitutes within the same family include UH3D-E3/57T and UH3DHE3/9AT. These alternatives offer identical electrical characteristics but may differ in packaging quantities or reel diameters.