AR1FDHM3/I

Overview

The AR1FDHM3/I is a single fast recovery rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum DC reverse voltage (Vr) of 200 V and an average forward rectified current (Io) of 1 A. The device utilizes the eSMP technology within the DO-219AB (SMF) surface-mount package. Key electrical parameters include a peak reverse recovery time (trr) of 140 ns, a maximum forward voltage (Vf) of 1.25 V at 1 A, and a reverse leakage current of 1 µA at 200 V. It operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• Fast recovery characteristics with a peak reverse recovery time of 140 ns for efficient switching applications.
• High thermal stability supporting operation up to a junction temperature of +175°C.
• Automotive grade qualification compliant with AEC-Q101 standards.

Applications

• Automotive electronics systems requiring high reliability
• DC-DC converter circuits
• High-frequency switching power supplies

Procurement Notes

Verify the specific part number AR1FDHM3/I against official Vishay documentation to confirm availability and specifications. Ensure that the ordering suffix matches the required packaging format, such as tape and reel or cut tape, as these may affect handling but not the electrical function. Cross-reference with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a 200 V rated, 1 A fast recovery diode is required in a compact SMF package. The 140 ns reverse recovery time makes it suitable for higher frequency applications compared to standard rectifiers. Consider the AEC-Q101 qualification if the design targets automotive environments. Evaluate the thermal management requirements given the 175°C junction temperature capability.

Part Context

This component belongs to Vishay's eSMP series of surface mount rectifiers. It is designed to replace through-hole equivalents in space-constrained PCB layouts. The DO-219AB package offers a small footprint while maintaining robust electrical performance for general-purpose and specialized rectification tasks.

Replacement Considerations

Check for direct substitutes within the AR1F series or other Vishay fast recovery diodes with matching 200 V and 1 A ratings. Verify pinout compatibility and package dimensions when considering alternatives from other manufacturers to ensure seamless integration without redesigning the PCB.

FAQ

What is the peak reverse recovery time for the AR1FDHM3/I?

The peak reverse recovery time (trr) is specified as 140 ns.

Is the AR1FDHM3/I qualified for automotive applications?

Yes, the device is qualified according to the AEC-Q101 standard.