AS4PJHM3_A/H

Overview

The AS4PJHM3_A/H is a high current density standard avalanche surface-mount rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a single circuit configuration in an SMPC (TO-277A) package with glass passivated pellet chip junctions. The device supports a maximum repetitive peak reverse voltage of 600 V and a DC forward current of 4.0 A. It exhibits a typical instantaneous forward voltage of 0.92 V at 4 A, a peak forward surge current capability of 100 A, and a non-repetitive avalanche energy rating of 20 mJ. Operating temperatures range from -55 °C to +175 °C.

Feature Summary

• Controlled avalanche characteristics for robust performance under transient conditions
• Glass passivated pellet chip junction ensuring low leakage current
• High forward surge capability designed for demanding power applications
• Very low profile construction ideal for automated placement processes

Applications

• General purpose rectification of power supplies
• Inverter circuits
• Converter topologies
• Freewheeling diodes for consumer electronics
• Automotive systems
• Telecommunication equipment

Procurement Notes

Verify the specific ordering code suffix against official documentation to confirm compliance requirements. The HM3 designation indicates halogen-free, RoHS-compliant materials and AEC-Q101 qualification. Confirm the base part number matches the required voltage rating within the AS4P series before procurement.

Selection Notes

Select this component when a single-diode surface-mount solution with avalanche ruggedness is required. Ensure the application voltage does not exceed the 600 V repetitive peak reverse voltage limit. Verify that the thermal management strategy accommodates the specified junction-to-ambient thermal resistance for the intended ambient temperature conditions.

Part Context

This component belongs to the eSMP® series of high current density standard avalanche surface-mount rectifiers. The series includes variants with different voltage ratings such as AS4PD, AS4PG, AS4PK, and AS4PM. All share the same physical SMPC package and general electrical architecture while differing in their maximum repetitive peak reverse voltage specifications.

Replacement Considerations

AS4PJ-M3/86A

FAQ

What is the maximum non-repetitive avalanche energy rating?

The device has a maximum non-repetitive avalanche energy rating of 20 mJ at a junction temperature of 25 °C.

Does the component meet automotive reliability standards?

Yes, the AS4PJHM3 variant is AEC-Q101 qualified for automotive applications.