AR1FDHM3/H

Overview

The AR1FDHM3/H is a high-voltage avalanche rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum DC reverse voltage (Vr) of 600 V and an average forward rectified current (Io) of 1 A. The device utilizes the eSMP package in a DO-219AB (SMF) surface-mount configuration. Key electrical parameters include a maximum forward voltage (Vf) of 1.5 V at 1 A, a reverse leakage current of 1 µA at 600 V, and a typical reverse recovery time (trr) of 140 ns. The junction capacitance is specified as 10 pF at 4 V and 1 MHz. Operating temperatures range from -55°C to +175°C.

Feature Summary

• Engineered with avalanche technology for rugged operation under transient conditions
• Certified to AEC-Q101 standards for automotive reliability requirements
• Utilizes low-inductance eSMP packaging for efficient high-frequency performance

Applications

• Automotive electronics systems requiring high-reliability components
• High-voltage switching power supply circuits
• Inductive load protection applications

Procurement Notes

Verify the specific suffix 'H' against official Vishay documentation to confirm compliance with RoHS3 directives and REACH status. Ensure the ordering part number matches the exact package variant required for your PCB layout. Cross-reference the datasheet revision date to confirm the most current electrical specifications and mechanical dimensions are applied during procurement.

Selection Notes

Select this component when a 600 V blocking capability is required in a compact surface-mount form factor. The 1 A current rating suits moderate power applications. Consider the 140 ns reverse recovery time for switching frequency compatibility. Verify that the thermal management design supports the -55°C to +175°C operating range for harsh environments.

Part Context

This device belongs to the AR1F series of fast recovery rectifiers from Vishay. It shares the same DO-219AB footprint and general characteristics as variants like AR1FMHM3/H and AR1FJHM3/H, differentiated primarily by their reverse voltage ratings. The series is designed for automotive and industrial applications demanding robustness and small outline packages.

Replacement Considerations

Consult official Vishay substitution guides for verified equivalents. Generic replacements may not match the specific avalanche ruggedness or AEC-Q101 qualification. Verify pinout compatibility and thermal resistance values before integrating alternative parts into existing designs.