LD422043

Overview

The Powerex LD422043 is an isolated dual SCR/Diode module from the POW-R-BLOK series. It features a chassis mount configuration designed for high-power industrial applications. The device provides a repetitive peak reverse voltage of 2000V and a maximum on-state current rating of 430A. It supports a series connection capability with a total current handling of up to 800A in that specific topology. The module includes surge current ratings of 14,000A or 16,000A depending on the specific test condition standard. This component integrates both Silicon Controlled Rectifier and Diode functions within a single insulated package.

Feature Summary

• Dual integrated structure combining SCR and Diode functionalities within one isolated module
• Chassis mount design suitable for robust industrial power conversion systems
• High voltage isolation capabilities ensuring safety in high-power circuits

Applications

• Industrial motor drives requiring high voltage blocking
• DC power transmission and distribution systems
• High power rectification circuits in heavy machinery

Procurement Notes

Verify the exact datasheet version from Powerex Inc. to confirm thermal characteristics and mounting torque specifications. Ensure the procurement channel provides traceability documentation as required for industrial components. Cross-reference the part number against official manufacturer catalogs to avoid counterfeit units. Confirm that the received module matches the isolated dual construction described in the technical literature.

Selection Notes

Select this module when applications require combined switching and freewheeling diode functions in a single footprint. Consider the 2000V rating for medium-voltage AC/DC interfaces. Evaluate the 430A continuous current limit against thermal management solutions. The series connection option allows for higher current demands if multiple units are utilized in parallel configurations.

Part Context

This component belongs to the POW-R-BLOK family of power semiconductor modules manufactured by Powerex Inc. The series is known for providing reliable performance in demanding environments. These modules typically utilize advanced silicon technology to handle high energy stresses. The LD422043 specifically addresses needs for dual-functionality in space-constrained high-power designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Users must consult official Powerex engineering support for direct equivalents or pin-compatible alternatives. Verify electrical parameters carefully before substituting any component in critical high-voltage circuits.