AS3PDHM3_A/H

Overview

The AS3PDHM3_A/H is a fast recovery avalanche rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a 200 V repetitive peak reverse voltage and a 3 A average forward current rating in a TO-277A (SMP) surface-mount package. The device exhibits a maximum forward voltage of 1.04 V at 3 A and a typical reverse leakage current of 330 nA. It supports a surge current of 50 A and operates within a junction temperature range of -55 °C to +175 °C. This component is qualified under the AEC-Q101 standard for automotive applications.

Feature Summary

• Fast recovery avalanche technology designed for high-speed switching applications
• Qualified for automotive electronics according to AEC-Q101 standards
• High thermal stability with an extended operating junction temperature range up to 175 °C

Applications

• Automotive power supply circuits
• General-purpose rectification in industrial equipment
• High-frequency switching power converters

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm exact electrical tolerances and packaging configurations. Ensure the procurement channel provides valid traceability records for AEC-Q101 qualified components. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current production status and availability constraints before finalizing orders.

Selection Notes

Select this component when designing circuits requiring robust avalanche energy handling capabilities alongside fast recovery characteristics. The TO-277A package offers a compact footprint suitable for space-constrained printed circuit board layouts. Consider the 200 V rating and 3 A current capacity to ensure adequate headroom for transient voltage spikes and load variations in the target application environment.

Part Context

This device belongs to the AR3P series of fast recovery rectifiers from Vishay Semiconductors. The series utilizes silicon planar technology optimized for efficiency and reliability. The AS3PDHM3_A/H variant specifically integrates avalanche ruggedness, distinguishing it from standard rectifiers that may lack protection against unclamped inductive switching events.

Replacement Considerations

Consult official Vishay substitution guides for verified equivalents. Generic replacements must match the TO-277A package, 200 V rating, 3 A current capability, and fast recovery specifications.