AU3PGHM3_A/H

Overview

The AU3PGHM3_A/H is a fast recovery rectifier diode from Vishay, designed for surface mount applications in the SMPC (TO-277A-3) package. It features a 400 V maximum repetitive reverse voltage and supports an average forward current of 3 A. The device exhibits a typical forward voltage of 900 mV at 3 A and a reverse leakage current of 280 nA. Key electrical characteristics include a maximum surge current of 70 A and a reverse recovery time of 1.2 µs. It operates within a junction temperature range of -55°C to +175°C and holds AEC-Q101 automotive qualification.

Feature Summary

• Avalanche rated capability for robust operation in inductive switching environments
• Fast recovery performance optimized for high-frequency power conversion circuits
• Automotive grade reliability certified under AEC-Q101 standards

Applications

• Automotive DC-DC converters
• High-frequency power supply freewheeling applications
• Inductive load protection circuits

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and qualification status. Ensure compatibility with peak inverse voltage requirements in the target circuit design. Confirm RoHS compliance and lead-free manufacturing status prior to integration into production lines.

Selection Notes

Select this component for applications requiring high thermal stability and avalanche ruggedness. The 3 A current rating suits moderate power levels, while the 400 V blocking voltage provides safety margin for standard automotive systems. Consider the 1.2 µs recovery time for efficiency optimization in switching regulators.

Part Context

This part belongs to Vishay’s eSMP series of surface mount rectifiers. It utilizes the SMPC footprint to offer improved thermal dissipation compared to smaller packages. The series targets automotive and industrial sectors demanding high reliability and compact form factors.

Replacement Considerations

Direct substitutes must match the 400 V reverse voltage, 3 A current rating, and SMPC package. Verify that alternative fast recovery diodes maintain comparable avalanche ratings and reverse recovery times to ensure circuit integrity.