AU3PMHM3_A/I

Overview

The AU3PMHM3_A/I is an ultrafast avalanche surface mount rectifier from Vishay General Semiconductor, featuring a single diode configuration in the SMPC (TO-277A) package. It supports a maximum repetitive peak reverse voltage of 1000 V and a maximum DC forward current of 3.0 A at 25 °C. The device exhibits a fast reverse recovery time of up to 75 ns and handles a peak forward surge current of 45 A. It operates within a junction temperature range of -55 °C to +175 °C and includes controlled avalanche characteristics with a non-repetitive avalanche energy rating of 20 mJ.

Feature Summary

• Glass passivated pellet chip junction for enhanced reliability
• Controlled avalanche characteristics suitable for inductive load switching
• Very low profile construction ideal for automated placement processes
• Halogen-free and RoHS-compliant manufacturing

Applications

• Fast switching rectification in power supplies
• Freewheeling diodes for consumer electronics
• Inverter and converter circuits
• Automotive electronic systems
• Telecommunication equipment

Procurement Notes

Verify that the specific ordering code matches the required voltage rating and automotive qualification status. Confirm the reel size corresponds to the intended production volume. Ensure compliance with JESD 201 whisker test requirements if applicable to the design specifications.

Selection Notes

Select this component for applications requiring high-voltage handling and rapid switching speeds. The 1000 V rating distinguishes it from lower voltage variants. Consider the thermal resistance values when designing heat dissipation strategies for high ambient temperatures or dense PCB layouts.

Part Context

This part belongs to the eSMP series of ultrafast rectifiers manufactured by Vishay General Semiconductor. It utilizes the SMPC package format, which provides a compact footprint while maintaining robust electrical performance for general-purpose and specialized rectification tasks.

Replacement Considerations

Direct substitutes include the AU3PKHM3_A/I variant, which shares identical physical dimensions but offers a reduced 800 V reverse voltage rating. Verify that the lower voltage threshold meets the circuit's peak inverse voltage requirements before substitution.

FAQ

What is the maximum non-repetitive avalanche energy rating?

The device is rated for a non-repetitive avalanche energy of 20 mJ at a junction temperature of 25 °C.

Does this component meet automotive standards?

Yes, the HM3 suffix indicates that the component is AEC-Q101 qualified for automotive applications.