AS1FG-M3/H

Overview

The AS1FG-M3/H is a standard recovery rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a single diode configuration housed in the DO-219AB (SMF) surface-mount package. The device supports an average forward current of 1 A and a maximum repetitive peak reverse voltage of 400 V. Key electrical parameters include a forward voltage of 1.1 V at 700 mA, a reverse leakage current of 5 µA at 400 V, and a reverse recovery time of 1.2 µs. It operates within a junction temperature range of -55°C to 175°C and holds AEC-Q101 automotive qualification.

Feature Summary

• Automotive-grade reliability with AEC-Q101 certification for robust performance in demanding environments.
• High thermal stability supporting operation up to a 175°C junction temperature.
• Compact surface-mount design utilizing the DO-219AB (SMF) package for efficient PCB integration.

Applications

• Automotive electronics systems requiring qualified rectification components
• General-purpose power supply circuits
• Industrial control equipment

Procurement Notes

Verify the specific ordering suffix against official Vishay documentation to confirm exact packaging and tape-and-reel specifications. Ensure compliance with RoHS directives and REACH regulations as stated in the manufacturer's datasheet. Confirm that the DO-219AB footprint matches your PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 400 V reverse voltage rating and 1 A continuous current are required in a compact SMD form factor. The 1.2 µs reverse recovery time suits standard frequency applications. Consider the AEC-Q101 qualification if the target application involves automotive standards or requires extended high-temperature operational margins compared to commercial grade parts.

Part Context

This part belongs to the AS1F series of standard recovery rectifiers from Vishay. It shares the DO-219AB (SMF) package with other variants in the lineup but is distinguished by its specific 400 V voltage rating and 1 A current capacity. The series is designed to provide reliable rectification in space-constrained surface-mount designs.

Replacement Considerations

Consult official Vishay cross-reference guides for verified substitutes. Potential alternatives may include other Vishay SMF packages with matching 400 V and 1 A ratings, provided pinout compatibility and electrical parameters align with the original design requirements.