AR1FMHM3/H

Overview

The AR1FMHM3/H is a single avalanche recovery rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum DC reverse voltage (Vr) of 1000 V and an average rectified forward current (Io) of 1 A. The device utilizes fast recovery technology with a reverse recovery time (trr) of 120 ns. Forward voltage (Vf) is specified at 1.6 V when conducting 1 A, while reverse leakage current (Ir) remains at 1 µA under 1000 V conditions. Junction capacitance measures 9.3 pF at 4 V and 1 MHz. The component operates within a junction temperature range of -55°C to +175°C and is housed in the DO-219AB (SMF) surface-mount package.

Feature Summary

• Engineered with avalanche recovery capability for robust performance under transient energy stress.
• Certified to AEC-Q101 standards, ensuring suitability for demanding automotive electronic applications.
• Utilizes fast recovery silicon technology to minimize switching losses and improve circuit efficiency.
• Constructed in a compact DO-219AB surface-mount package for automated assembly integration.

Applications

• Automotive power supply circuits requiring high reliability and voltage withstand.
• General-purpose rectification in industrial electronics operating at elevated temperatures.
• High-voltage switching applications utilizing fast recovery characteristics.

Procurement Notes

Verify the specific suffix configuration against official Vishay documentation to ensure alignment with project requirements. Confirm that the ordering information matches the exact electrical specifications and packaging format needed. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement actions.

Selection Notes

Select this component when a 1000 V rating and 1 A continuous current capacity are required in a small surface-mount footprint. The AEC-Q101 qualification makes it appropriate for automotive environments where thermal stability and ruggedness are critical. Consider the 120 ns reverse recovery time for high-frequency switching designs where standard rectifiers may introduce excessive losses or noise.

Part Context

This device belongs to the AR1F series of fast recovery rectifiers from Vishay. The series includes variants with different voltage ratings such as 600 V and 1000 V. These components are designed for general-purpose use in both industrial and automotive sectors, offering a balance of speed, voltage handling, and physical size suitable for modern PCB layouts.

Replacement Considerations

The AR1FM-M3/H is a confirmed substitute part number within the same product family. Verify compatibility regarding voltage, current, and package dimensions before substitution.