AU3PM-M3/87A

Overview

The AU3PM-M3/87A is an ultrafast avalanche surface mount rectifier from Vishay General Semiconductor, part of the eSMP series. It features a maximum repetitive peak reverse voltage of 1000 V and a maximum DC forward current of 3.0 A. The device exhibits a fast reverse recovery time of 75 ns and supports a peak forward surge current of 45 A. It operates within a junction temperature range of -55 to +175 °C and is housed in a compact SMPC (TO-277A) package.

Feature Summary

• Glass passivated pellet chip junction for enhanced reliability
• Controlled avalanche characteristics with non-repetitive avalanche energy capability
• Low leakage current and high forward surge capability
• Meets MSL level 1 per J-ST D-020 with a maximum peak reflow temperature of 260 °C

Applications

• Fast switching rectification of power supplies
• Inverters and converters
• Freewheeling diodes for consumer, automotive, and telecommunication equipment

Procurement Notes

Verify that the ordering code matches the specific voltage rating required, as the AU3PK variant offers 800 V while the AU3PM provides 1000 V. Confirm whether commercial grade or AEC-Q101 qualified versions are needed, noting that the HM3 suffix indicates automotive qualification. Ensure the reel size corresponds to the desired quantity, with options available for both 1500 and 6500 units per reel.

Selection Notes

Select this component for applications requiring high voltage blocking capabilities combined with ultrafast recovery times. The single circuit configuration and TO-277A package facilitate automated placement and space-constrained designs. Consider the thermal resistance values when designing heat dissipation strategies, particularly for high ambient temperature environments where derating curves must be applied.

Part Context

This device belongs to the eSMP series of ultrafast avalanche rectifiers manufactured by Vishay General Semiconductor. It utilizes glass passivation technology and is designed for surface mount assembly. The product line includes variants with different voltage ratings and qualification levels to suit diverse industrial and automotive requirements.

Replacement Considerations

Direct substitutes include the AU3PK-M3/87A, which shares identical electrical characteristics except for a reduced maximum repetitive peak reverse voltage of 800 V compared to the 1000 V rating of the AU3PM.

FAQ

What is the typical height of the AU3PM-M3/87A package?

The typical height of the SMPC (TO-277A) package is 1.1 mm.

Is the AU3PM-M3/87A qualified for automotive applications?

The standard AU3PM-M3/87A is commercial grade. Automotive qualification is available through the HM3 suffix variants, which meet AEC-Q101 standards.