AR4PG-M3/87A

Overview

The AR4PG-M3/87A is a surface-mount avalanche rectifier diode from Vishay, housed in the TO-277A (SMPC) package. It features a maximum DC reverse voltage of 400 V and an average forward current rating of 2 A. The device utilizes eSMP technology for robust performance. It operates within a junction temperature range of -55°C to +150°C. Key electrical characteristics include a peak non-repetitive surge current capability and specific avalanche energy ratings defined by the manufacturer.

Feature Summary

• Engineered with avalanche ruggedness to withstand repetitive transient energy events without failure
• Utilizes eSMP surface-mount technology for compact footprint and automated assembly compatibility
• Designed for high reliability in harsh environments with extended operating temperature range

Applications

• Inductive load switching circuits requiring avalanche tolerance
• Flyback converter output rectification
• DC-DC converter protection stages

Procurement Notes

Verify the complete part number including suffixes such as /87A to ensure correct packaging configuration. Confirm RoHS compliance status through official datasheets or manufacturer declarations prior to integration. Ensure storage conditions align with semiconductor handling standards to prevent moisture sensitivity issues during reflow soldering processes.

Selection Notes

Select this component when circuit design demands both standard rectification and avalanche capability in a small surface-mount form factor. Compare thermal resistance values against available heatsinking options. Evaluate peak pulse current requirements against the device's specified limits to ensure adequate safety margins under fault conditions.

Part Context

This device belongs to Vishay's eSMP series of surface-mount power diodes. The series emphasizes miniaturization while maintaining high voltage and current ratings suitable for modern electronics. The TO-277A package provides a balance between thermal performance and board space efficiency compared to larger through-hole alternatives.

Replacement Considerations

Check for direct substitutes within the same eSMP family offering identical pinouts and electrical ratings. Verify that alternative avalanche-rated diodes meet the specific energy absorption requirements of the application circuit.