AS3PM-M3/87A

Overview

The AS3PM-M3/87A is a surface-mount avalanche rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum repetitive peak reverse voltage of 1000 V and an average forward rectified current of 2.1 A. The component utilizes the TO-277A (SMPC) package for compact integration. It operates within a junction temperature range of -55°C to 175°C. This device is part of the eSMP® series, designed for high-voltage applications requiring robust avalanche energy handling capabilities.

Feature Summary

• Engineered with avalanche-rated capability for reliable operation under transient overvoltage conditions
• Utilizes eSMP® surface-mount packaging for automated assembly and space-constrained designs
• Supports extended operating temperatures up to 175°C for demanding environments

Applications

• High-voltage DC-DC converter circuits
• Flyback transformer clamp protection
• Inductive load switching protection

Procurement Notes

Verify the specific suffix /87A corresponds to the reel packaging configuration required for your production line. Confirm that the 1000V rating and 2.1A current capacity align with your circuit's peak inverse voltage and average current requirements. Ensure compatibility with the TO-277A footprint during PCB layout finalization.

Selection Notes

Select this component when designing circuits that require avalanche ruggedness in a small surface-mount form factor. Compare against standard rectifiers if transient energy absorption is necessary. Verify thermal management strategies given the 175°C junction limit. Consider the 2.1A average current rating relative to your duty cycle and cooling conditions.

Part Context

This device belongs to Vishay's eSMP® family of surface-mount power diodes. It shares the TO-277A physical footprint with other variants in the series but differs in voltage and current ratings. The avalanche rating distinguishes it from standard fast-recovery or Schottky counterparts in the same package type.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical parameters before considering alternative manufacturers.