AS1FG-M3/I

Overview

The AS1FG-M3/I is a single avalanche diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum DC reverse voltage (Vr) of 400 V and an average forward rectified current (Io) of 1.5 A. The device exhibits a maximum forward voltage (Vf) of 1.15 V at 1.5 A. It is designed for surface mount installation in the DO-219AB (SMF) package. The component operates within a junction temperature range of -55°C to 175°C.

Feature Summary

• Supports avalanche breakdown characteristics for energy absorption applications
• Optimized for high-speed switching with low forward voltage drop
• Designed for surface mount assembly in compact SMF packages

Applications

• General purpose rectification
• Protection circuits requiring avalanche capability
• High-frequency switching applications

Procurement Notes

Verify the specific suffix 'I' against official datasheets to confirm tape and reel packaging requirements. Ensure the DO-219AB footprint matches the design layout. Confirm that the 400V rating aligns with system voltage peaks. Check for RoHS compliance markings on the component body or documentation.

Selection Notes

Select this component when a 400V reverse voltage rating and 1.5A continuous current are required in a small surface mount form factor. Consider the avalanche capability if transient energy absorption is needed. Compare Vf specifications against thermal management constraints in the target application environment.

Part Context

This part belongs to Vishay's standard single diode lineup utilizing advanced semiconductor technology. It is distinct from TVS diodes like the VTVS series, focusing on rectification rather than transient suppression. The SMF package offers a compact alternative to through-hole options for space-constrained designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.