AU3PMHM3_A/H

Overview

The AU3PMHM3_A/H is an ultrafast avalanche surface mount rectifier manufactured by Vishay General Semiconductor. It features a single diode configuration in an SMPC (TO-277A) package with glass passivated pellet chip junctions. The device supports a maximum repetitive peak reverse voltage of 1000 V and a maximum DC forward current of 3.0 A. Key electrical parameters include a typical reverse recovery time of 58 ns, a maximum reverse recovery time of 75 ns, and a non-repetitive avalanche energy rating of 20 mJ at TJ = 25 °C. It operates within a temperature range of -55 to +175 °C.

Feature Summary

• Features controlled avalanche characteristics for robust performance under transient conditions.
• Utilizes glass passivated pellet chip junctions to ensure stability and reliability.
• Designed with very low profile dimensions to facilitate automated placement processes.

Applications

• Fast switching rectification in power supplies
• Freewheeling diodes for consumer electronics
• Inverters and converters in automotive systems

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm compliance requirements. Ensure that the selected variant matches the required AEC-Q101 qualification status if intended for automotive applications. Cross-reference the base part number with the latest datasheet revision to validate material categorization and halogen-free status before finalizing procurement specifications.

Selection Notes

Select this component when high-voltage blocking capability and fast recovery are required in a compact surface-mount form factor. Consider the thermal resistance values and derating curves to ensure adequate heat dissipation for the expected average forward current. Evaluate the avalanche energy rating to confirm suitability for circuits prone to inductive load switching or voltage spikes.

Part Context

This device belongs to the eSMP series of ultrafast avalanche rectifiers from Vishay. It shares the SMPC (TO-277A) mechanical footprint with other variants in the family, such as the AU3PKHM3_A/H which offers lower voltage ratings. The HM3 suffix indicates compliance with JESD 201 class 2 whisker test standards and RoHS directives.

Replacement Considerations

Direct substitutes within the same package and electrical specification should be sourced from the official Vishay AU3P/AU3K product line. Verify pinout compatibility and thermal characteristics when considering cross-brand alternatives.