AS3BDHM3_A/I

Overview

The AS3BDHM3_A/I is a single standard recovery rectifier 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 3 A. The device utilizes the eSMP package, specifically DO-214AA (SMB), for surface mount installation. Key electrical parameters include a maximum forward voltage (Vf) of 980 mV at 3 A, a peak repetitive reverse voltage of 200 V, and a maximum non-repetitive peak forward surge current of 90 A. The component operates within a junction temperature range of -55°C to +175°C and exhibits a reverse leakage current of 500 nA at 200 V.

Feature Summary

• Qualified for automotive applications under the AEC-Q101 standard.
• Constructed with avalanche-rated silicon technology for enhanced ruggedness.
• Utilizes the eSMP surface-mount package design for compact integration.

Applications

• Automotive power supply circuits
• General-purpose rectification in industrial electronics
• DC-DC converter output stages

Procurement Notes

Verify the specific suffix configuration against the manufacturer's official datasheet to ensure alignment with required packaging and qualification standards. Confirm that the AEC-Q101 automotive qualification meets the target application's reliability requirements. Cross-reference the eSMP package dimensions with PCB footprint specifications prior to procurement to prevent assembly errors.

Selection Notes

Select this component for applications requiring a 200 V rating with 3 A continuous current capability in a compact SMB package. The high junction temperature rating of 175°C supports operation in thermally constrained environments. Ensure the circuit design accounts for the specified forward voltage drop and surge current limits during transient conditions.

Part Context

This part belongs to Vishay's eSMP series of surface-mount rectifiers, designed for space-constrained designs. The AS3B variant specifically denotes a 3 A, 200 V standard recovery diode with avalanche capability. It serves as a robust solution for replacing through-hole components in modern high-density printed circuit board assemblies.

Replacement Considerations

Direct substitutes must match the 200 V, 3 A specification and DO-214AA (SMB) package. Verify that any replacement also holds AEC-Q101 qualification if automotive use is intended. Check for equivalent avalanche ratings and thermal characteristics to ensure functional parity.

FAQ

Is the AS3BDHM3_A/I rated for avalanche breakdown?

Yes, the component is described as an Avalanche-rated rectifier, indicating it can withstand avalanche energy under specified conditions.

What is the maximum operating junction temperature?

The maximum operating junction temperature is +175°C.