AR1FMHM3/I

Overview

The AR1FMHM3/I is a single fast recovery avalanche rectifier from Vishay, designed for surface-mount applications in the DO-219AB (SMF) package. It features a maximum repetitive peak reverse voltage of 1000 V and an average forward rectified current of 1 A. The device exhibits a typical forward voltage of 1.6 V at 1 A and a reverse leakage current of 1 µA at 1000 V. Key electrical characteristics include a reverse recovery time of 120 ns and a junction capacitance of 9.3 pF at 4 V and 1 MHz. It operates within a junction temperature range of -55°C to 175°C and holds AEC-Q101 automotive qualification.

Feature Summary

• Incorporates avalanche-rated technology to withstand energy-induced avalanche conditions
• Utilizes fast recovery epitaxial planar construction for efficient switching performance
• Complies with AEC-Q101 standards for automotive reliability requirements

Applications

• Automotive electronics systems requiring high-voltage rectification
• High-frequency power supply circuits
• Inductive load switching applications

Procurement Notes

Verify the specific suffix against official documentation to confirm package variant and compliance status. Ensure the ordering part number matches the required tape-and-reel or cut-tape configuration. Cross-reference the manufacturer datasheet for any recent product change notices regarding lead frame or assembly site modifications that may affect physical dimensions or material composition.

Selection Notes

Select this component when a high-voltage, low-current surface-mount rectifier with avalanche capability is required. The DO-219AB package offers a compact footprint suitable for space-constrained designs. Consider the 1000 V rating and 1 A current capacity relative to circuit demands. Verify thermal management needs given the 175°C maximum junction temperature limit and the specific forward voltage drop characteristics under expected load conditions.

Part Context

This device belongs to the AR1F series of fast recovery rectifiers manufactured by Vishay General Semiconductor. It is part of the eSMP product line, emphasizing standard recovery characteristics combined with robust avalanche handling. The SMF package provides a small outline form factor compared to through-hole alternatives, facilitating automated surface-mount assembly processes in modern electronic manufacturing.

Replacement Considerations

The AR1FM-M3/H shares identical electrical specifications and package type. Verify pinout compatibility and mounting dimensions before substitution. Confirm that the replacement part meets the same AEC-Q101 qualification standards if used in automotive applications.