AU3PGHM3_A/I

Overview

The AU3PGHM3_A/I is a surface-mount avalanche rectifier diode manufactured by Vishay General Semiconductor. It features a TO-277A (SMPC) package and supports an average forward current of 1.7 A with a maximum repetitive peak reverse voltage of 400 V. The device is qualified under the AEC-Q101 standard for automotive applications, ensuring reliability in demanding environments.

Feature Summary

• Engineered with avalanche characteristics to withstand unclamped inductive switching events
• Designed for high-reliability automotive electronics applications
• Utilizes a compact surface-mount SMPC package for efficient board space utilization

Applications

• Automotive power supply circuits
• Inductive load protection systems
• General-purpose rectification in harsh electrical environments

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm exact packaging and qualification status. Ensure the component meets the required AEC-Q101 standards for your target application. Cross-reference datasheets for thermal management requirements during integration.

Selection Notes

Select this component when avalanche ruggedness is required for inductive loads. The 400 V rating suits medium-voltage DC applications. Consider the TO-277A footprint constraints and verify thermal dissipation capabilities relative to the expected duty cycle and ambient temperature conditions.

Part Context

This part belongs to Vishay's family of avalanche-rated rectifiers designed for robust performance. It complements other high-voltage diodes in the portfolio, offering a balance of current handling and voltage blocking capability in a standardized surface-mount form factor suitable for modern automated assembly processes.

Replacement Considerations

The AU3PGHM3/87A is identified as an equivalent or substitute part number. Verify pinout compatibility and ensure the alternative meets the same AEC-Q101 qualification and avalanche energy ratings before implementation.