AU1FGHM3/H

Overview

The AU1FGHM3/H is a Vishay Semiconductors ultrafast recovery rectifier featuring a single-phase configuration in the DO-220AA (SMF) surface-mount package. It supports a maximum average forward rectified current of 1 A and a repetitive peak reverse voltage of 600 V. The device exhibits a typical forward voltage drop of 1.5 V at rated current and a maximum reverse leakage current of 5 µA. Key dynamic parameters include a fast recovery time of 75 ns and a peak forward surge current capability of 30 A, ensuring robust performance under transient conditions.

Feature Summary

• Ultrafast recovery characteristics enable efficient operation in high-frequency switching applications with minimal reverse recovery charge.
• Integrated avalanche rating provides enhanced ruggedness against inductive load switching transients and voltage spikes.
• Glass passivation technology ensures stable electrical performance and long-term reliability across wide temperature ranges.

Applications

• High-frequency DC/DC converter output rectification
• Free-wheeling diodes in inductive load circuits
• Polarity protection in power supply input stages

Procurement Notes

Verify the specific suffix designation against the manufacturer's official documentation to confirm exact binning or testing variations. Confirm RoHS compliance status and REACH SVHC declarations for regulatory adherence. Ensure the ordering part number matches the required packaging format, such as cut tape or reel quantities, prior to procurement.

Selection Notes

Select this component when circuit requirements demand low reverse recovery charge for improved efficiency in high-speed switching environments. The 600 V blocking voltage provides sufficient margin for standard industrial and consumer power supplies. Evaluate thermal management needs based on the 1 A continuous current rating and the thermal resistance characteristics of the SMF package.

Part Context

This component belongs to Vishay's AU series of ultrafast recovery rectifiers, designed for compact surface-mount implementations. The AU1F variant specifically targets applications requiring a balance between high voltage blocking capability and rapid switching speeds within the small-form-factor SMF footprint.

Replacement Considerations

Cross-reference with other Vishay AU1F variants or equivalent ultrafast rectifiers from other manufacturers that match the 1 A current, 600 V voltage, and DO-220AA package constraints. Verify pinout compatibility and ensure replacement parts meet or exceed the original 75 ns recovery time specification.