AS3PMHM3_A/I

Overview

The AS3PMHM3_A/I is a high current density standard avalanche surface mount rectifier from Vishay General Semiconductor, utilizing the eSMP package. It features a glass passivated chip junction and controlled avalanche characteristics suitable for demanding environments. The device supports an average forward current of 3.0 A with repetitive peak reverse voltages ranging from 200 V to 1000 V. It withstands a high forward surge capability of 70 A and maintains low leakage current. Qualified under AEC-Q101 standards, it operates within a junction temperature range up to 175 °C and meets MSL level 1 requirements.

Feature Summary

• Glass passivated chip junction ensures stable performance
• Controlled avalanche characteristics provide robustness against voltage transients
• Very low profile design ideal for automated placement processes
• AEC-Q101 qualified for automotive reliability standards

Applications

• Automotive electronics requiring high reliability
• High frequency DC/DC converters
• Switching power supplies
• Freewheeling diode applications
• Reverse battery protection circuits

Procurement Notes

Verify the specific voltage rating suffix (e.g., 200V, 400V, 600V, 800V, or 1000V) as the base part number covers multiple variants. Confirm the package type matches TO-277A (SMPC). Ensure compliance with RoHS Directive 2002/95/EC and WEEE 2002/96/EC requirements for your region. Check for halogen-free status according to IEC 61249-2-21 definition if required by your manufacturing process specifications.

Selection Notes

Select this component when a surface mount rectifier with avalanche capability is needed in a compact form factor. The eSMP package offers a typical height of 1.1 mm, suitable for space-constrained designs. Consider the 70 A surge current rating for applications with high inrush currents. Verify that the operating junction temperature range of -55 °C to 175 °C aligns with your thermal management strategy and environmental conditions.

Part Context

This rectifier belongs to Vishay's eSMP series, designed for high current density applications. It complements other surface mount solutions by combining low profile with high surge capability. The series is engineered for automated assembly, featuring controlled avalanche characteristics that enhance durability in electrically noisy environments common in modern electronic systems.

Replacement Considerations

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