AS1PGHM3/84A

Overview

The AS1PGHM3/84A is a Vishay General Semiconductor diode rated for 400 V reverse voltage and 1.5 A average forward current. It utilizes the DO-220AA (SMP) surface-mount package. The component features an avalanche capability, allowing it to withstand repetitive avalanche conditions. It operates within a junction temperature range of -55°C to +175°C. The device is RoHS compliant and lead-free.

Feature Summary

• Engineered with avalanche capability for robust operation under transient energy stress
• Designed for high-temperature environments with a maximum junction temperature of +175°C
• Utilizes a compact surface-mount DO-220AA (SMP) footprint for automated assembly

Applications

• High-voltage power supply circuits requiring avalanche ruggedness
• Flyback diode applications in inductive load switching
• General-purpose rectification in industrial electronics

Procurement Notes

Verify the specific datasheet revision when ordering, as Vishay may update electrical characteristics or mechanical drawings over time. Confirm that the DO-220AA package dimensions match your PCB land pattern requirements. Ensure the application design accounts for the repetitive avalanche energy limits specified in the official technical documentation to prevent device failure.

Selection Notes

Select this component when a standard recovery diode with avalanche rating is required at 400 V. Compare the peak reverse leakage current and forward voltage drop against circuit efficiency targets. Verify that the 1.5 A continuous current rating meets the thermal management capabilities of the final enclosure. Consider the DO-220AA package size relative to available board space.

Part Context

This part belongs to the AS1P series of silicon planar avalanche rectifiers manufactured by Vishay. The series is characterized by high reliability and fast switching performance. The 'M3' suffix indicates lead-free termination and RoHS compliance. The '/84A' suffix typically denotes the specific tape-and-reel packaging configuration used for high-volume surface-mount production.

Replacement Considerations

Direct replacements must match the 400 V rating, 1.5 A current capacity, and DO-220AA package. Verify avalanche energy specifications if the original design relies on repetitive avalanche operation. Cross-reference with other Vishay AS1P variants or equivalent industry-standard avalanche diodes from different manufacturers.