AS3BDHM3_A/H

Overview

The AS3BDHM3_A/H is a single standard recovery rectifier manufactured by Vishay Semiconductors. It features a 200 V repetitive peak reverse voltage and a 3 A average forward current rating. The device utilizes an avalanche-rated design within the DO-214AA (SMB) surface-mount package. Key electrical parameters include a maximum forward voltage of 980 mV at rated current, a surge current capability of 90 A, and a low reverse leakage current of 500 nA. It operates across a junction temperature range from -55 °C to +175 °C and holds AEC-Q101 qualification for automotive reliability.

Feature Summary

• Avalanche-rated construction for enhanced ruggedness in inductive switching applications
• Glass passivation technology providing mechanical stability and protection against soldering tool errors
• Automotive grade qualification ensuring compliance with stringent industry reliability standards

Applications

• Automotive power supply circuits requiring high reliability
• General purpose rectification in industrial equipment
• DC-DC converter output stages

Procurement Notes

Verify the specific suffix configuration against the manufacturer datasheet to ensure correct packaging and marking. Confirm AEC-Q101 certification requirements match your system specifications. Check for RoHS compliance status relevant to your region. Ensure the SMB package footprint aligns with your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when a standard recovery diode with avalanche capability is required in an SMB package. The 3 A current rating suits moderate power applications. Consider the 175 °C maximum junction temperature for high-thermal environments. Compare forward voltage drop characteristics against alternative fast recovery options if switching speed is critical.

Part Context

This part belongs to Vishay's eSMP series of surface mount rectifiers designed for compact electronic designs. The SMD format facilitates automated assembly processes. The product line emphasizes robust performance in space-constrained automotive and industrial applications where reliability under thermal stress is paramount.

Replacement Considerations

Cross-reference with other Vishay SMB packages such as the AS3AHM3_A/H or AS3CHM3_A/H for different voltage ratings. Verify pinout compatibility and thermal resistance values when substituting with similar avalanche-rated devices from other manufacturers.