AR3PDHM3_A/I

Overview

The AR3PDHM3_A/I is a fast recovery avalanche rectifier manufactured by Vishay Semiconductors. It features a single configuration with a maximum average forward current of 3 A and a repetitive peak reverse voltage of 200 V. The device utilizes the eSMP (SMPC) package, specifically TO-277A-3, for surface mount installation. Key electrical parameters include a typical forward voltage of 1.04 V at 6.0 A, a maximum surge current of 50 A, and a reverse current of 330 nA. The component exhibits a fast recovery time of 122 ns and operates within a temperature range of -55 °C to +175 °C. It is qualified under AEC-Q101 standards.

Feature Summary

• Fast recovery avalanche capability designed for high-frequency switching applications
• Oxide planar chip junction technology ensuring robust performance
• Low profile construction suitable for automated placement processes
• Qualified for automotive electronics according to AEC-Q101 standards

Applications

• High frequency DC/DC converters
• Switching power supplies
• Freewheeling diodes in motor drives
• Reverse battery protection circuits

Procurement Notes

Verify the specific suffix designation when ordering, as the requested model includes an 'I' suffix which may indicate specific tape and reel packaging or regional compliance variations compared to the standard 'H' variant. Confirm that the AEC-Q101 qualification meets the specific automotive grade requirements of the target application. Ensure compatibility with the TO-277A-3 footprint during PCB layout verification.

Selection Notes

Select this component for designs requiring a 3 A current rating with fast recovery characteristics in a compact surface-mount form factor. The 200 V reverse voltage rating provides sufficient headroom for low-voltage DC bus applications. Consider the 122 ns recovery time against circuit switching frequencies to minimize reverse recovery losses. The wide operating temperature range supports demanding thermal environments without derating.

Part Context

This part belongs to the AR3P series of fast recovery rectifiers from Vishay. The series is characterized by its use of oxide planar junction technology and availability in the eSMP package family. These components are engineered to replace bulkier through-hole alternatives while maintaining high reliability and electrical performance suitable for modern compact electronic systems.

Replacement Considerations

The AR3PDHM3_A/H is a verified substitute part number within the same series, sharing identical electrical specifications and package dimensions. Verify that any replacement maintains the required AEC-Q101 qualification status if used in automotive contexts.