AU3PKHM3/86A

Overview

The AU3PKHM3/86A is a single ultrafast rectifier from Vishay, utilizing the eSMP (TO-277A) surface-mount package. It features an 800 V repetitive peak reverse voltage and a 3 A average forward current rating. The device incorporates FRED Pt technology for low recovery charge and fast switching. Key electrical parameters include a maximum reverse leakage current of 410 nA at rated voltage, a typical forward voltage drop of 1.13 V at full load, and a peak reverse recovery time of 66 ns. It supports a non-repetitive peak surge current of 45 A and operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• Utilizes FRED Pt technology for optimized switching performance and reduced reverse recovery charge.
• Features an avalanche-rated construction capable of handling unclamped inductive load events.
• Designed with a very low profile for efficient automated placement on printed circuit boards.
• Complies with automotive reliability standards through AEC-Q101 qualification.

Applications

• High-frequency DC-DC converter circuits
• Free-wheeling rectification in synchronous buck converters
• Automotive power supply modules
• Industrial motor drive rectification

Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm exact packaging and tape-and-reel specifications. Ensure that the ordering code matches the required quantity increments and reel size defined in the datasheet. Cross-reference the component marking with the physical device to prevent counterfeit substitution during assembly.

Selection Notes

Select this component when high voltage blocking capability is required alongside moderate current ratings in a compact surface-mount footprint. The eSMP package offers thermal advantages over traditional through-hole options while maintaining robust mechanical stability. Consider the avalanche rating for applications prone to voltage transients or inductive kickback without external clamping.

Part Context

This part belongs to Vishay's eSMP series, which focuses on high-current density rectifiers in a low-profile TO-277A form factor. The series targets modern electronics requiring miniaturization and high efficiency. The AU3P designation indicates a 3 Ampere class device within this specific voltage and speed tier.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.