A190N

Overview

The Powerex A190N is a general-purpose silicon rectifier diode designed for high-current applications. It features an 800 V maximum repetitive peak reverse voltage and supports a 250 A average rectified forward current. The device utilizes a stud mount configuration within a DO-205AA (DO-8) metal package, ensuring robust thermal management. Key electrical characteristics include a maximum forward voltage of 1.3 V at rated current and a non-repetitive peak surge current capacity of 3400 A. It operates reliably across a junction temperature range from -40°C to +200°C.

Feature Summary

• High thermal stability with a maximum junction temperature rating of 200°C
• Robust mechanical construction using a metal post/stud mount package
• Capable of handling significant non-repetitive surge currents up to 3400 A

Applications

• Industrial power conversion systems
• General purpose rectification in heavy-duty electronics
• Welding equipment power supplies

Procurement Notes

Verify the specific datasheet revision and manufacturer documentation before integration to ensure compliance with current RoHS3 standards and EAR99 classification. Confirm that the mounting hardware matches the DO-205AA stud specifications. Check for any recent product change notifications regarding material composition or testing requirements to maintain supply chain integrity and regulatory adherence.

Selection Notes

Select this component when designing circuits requiring high current handling capabilities alongside moderate voltage blocking. The stud mount style necessitates compatible heatsinking infrastructure. Ensure the application environment allows for the specified operating temperature range. Consider the physical dimensions of the metal package during layout planning to accommodate the required clearance and mounting torque specifications.

Part Context

This part belongs to the Powerex standard recovery rectifier family, characterized by rugged silicon construction. It serves as a reliable solution for industrial-grade power electronics where durability under high stress conditions is critical. The DO-205AA package provides a standardized interface for high-power thermal dissipation needs.

Replacement Considerations

Consult official cross-reference guides for equivalent high-current stud-mount rectifiers. Verify that any substitute maintains identical voltage ratings, current capacities, and physical mounting dimensions to ensure seamless integration without redesign.