AR3PMHM3_A/I

Overview

The AR3PMHM3_A/I is a fast switching avalanche surface-mount rectifier from Vishay General Semiconductor. It features a single diode configuration in an SMPC (TO-277A) package. Key electrical parameters include a maximum repetitive peak reverse voltage of 1000 V, a maximum DC forward current of 3.0 A, and a peak forward surge current of 50 A. The device exhibits a typical reverse recovery time of 120 ns and a maximum instantaneous forward voltage of 1.9 V at 3.0 A. It supports an operating junction temperature range from -55 °C to +175 °C.

Feature Summary

• Glass passivated pellet chip junction for enhanced reliability
• Controlled avalanche characteristics with non-repetitive avalanche energy rating
• Halogen-free, RoHS-compliant construction meeting automotive qualification standards
• Low profile design suitable for automated placement processes

Applications

• Fast switching rectification in power supplies
• Inverter and converter circuits
• Freewheeling diodes in consumer electronics
• Automotive electronic systems
• Telecommunication equipment

Procurement Notes

Verify the specific ordering code suffix against official documentation to confirm package quantity and reel specifications. Ensure that the HM3 designation aligns with required automotive qualification standards and material categorization compliance before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high voltage blocking capability and fast reverse recovery characteristics. Consider the thermal resistance values when designing heat dissipation strategies. Validate that the 1000 V reverse voltage rating exceeds the circuit's peak transient requirements.

Part Context

This part belongs to the eSMP series of fast switching avalanche rectifiers manufactured by Vishay General Semiconductor. It utilizes the SMPC package format designed for surface mount technology. The product line targets demanding power conversion environments requiring robust performance under high surge conditions.

Replacement Considerations

Consult official Vishay documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical parameter equivalence before implementing any cross-reference components in existing designs.