AU2PG-M3/87A

Overview

The AU2PG-M3/87A is a surface-mount avalanche diode from Vishay’s eSMP series, housed in a TO-277A (SMPC) package. It features a maximum DC reverse voltage of 400 V and an average forward current rating of 1.6 A. The component utilizes Fast Epitaxial Rectifier (FER) technology to ensure rapid switching characteristics. Designed for robust operation, it supports a junction temperature range from -55°C to +175°C and complies with RoHS standards.

Feature Summary

• Incorporates avalanche capability for energy absorption applications
• Utilizes fast epitaxial rectifier technology for efficient switching
• Designed for high-temperature reliability up to 175°C junction temperature

Applications

• Flyback diodes in inductive load circuits
• Protection against voltage spikes in switching power supplies
• Snubber circuits for transient suppression

Procurement Notes

Verify the specific suffix designation during procurement to confirm the exact packaging configuration, as variations may exist between tape-and-reel formats. Ensure that the requested component matches the active status indicated in official Vishay documentation. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm availability and compliance with current environmental directives before finalizing orders.

Selection Notes

Select this component when a surface-mount solution is required for avalanche protection in compact designs. The TO-277A package offers a balance of thermal performance and board space efficiency compared to larger through-hole alternatives. Consider the 400V reverse voltage rating to ensure adequate margin for the specific circuit operating conditions and potential transient overvoltages encountered in the application environment.

Part Context

This device belongs to Vishay’s eSMP product line, which focuses on surface-mount rectifiers and protection diodes. The eSMP series is engineered to provide reliable performance in modern electronics where space constraints are critical. The AU2PG variant specifically addresses the need for avalanche-rated components in high-frequency switching environments, distinguishing it from standard recovery diodes within the broader Vishay portfolio.

Replacement Considerations

Consult official Vishay substitution guides for verified equivalents. Generic replacements must match the 400V reverse voltage, 1.6A current rating, and TO-277A footprint to ensure mechanical and electrical compatibility without modifying the existing circuit design.