AS4PDHM3_A/I

Overview

The AS4PDHM3_A/I is a standard recovery rectifier from Vishay Semiconductors, housed in an SMPC (TO-277A-3) surface-mount package. It features a maximum repetitive reverse voltage of 200 V and an average forward current rating of 4 A. The device exhibits a typical forward voltage drop of 920 mV at rated current and supports a maximum surge current of 100 A. With a reverse leakage current of 350 nA and a recovery time of 1.8 µs, it operates within a junction temperature range of -55 °C to +175 °C.

Feature Summary

• Glass passivated chip junction for enhanced environmental stability
• Controlled avalanche characteristics for robust transient handling
• Low leakage current performance under high-temperature conditions
• High forward surge capability suitable for demanding power applications

Applications

• Automotive electronics systems requiring AEC-Q101 qualification
• General-purpose rectification in surface-mount power supplies
• Freewheeling diode applications in DC-DC converters
• Industrial equipment utilizing high-reliability SMD components

Procurement Notes

Verify the specific suffix against official datasheets to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with automated placement equipment due to the low-profile SMPC package dimensions. Confirm RoHS compliance status and halogen-free definitions prior to integration into regulated assemblies.

Selection Notes

Select this component when a standard recovery rectifier with controlled avalanche behavior is required in a compact surface-mount form factor. The 4 A current rating and 200 V blocking voltage suit medium-power applications. Consider the 1.8 µs recovery time for switching frequency constraints and verify thermal management requirements for the TO-277A-3 package.

Part Context

This part belongs to the eSMP series of high-current density standard avalanche surface mount rectifiers. The series is characterized by very low profile dimensions, typically around 1.1 mm height, making it ideal for automated placement processes. These devices utilize glass passivation and offer high reliability for automotive and industrial markets.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.