CM431690

SCRs - Modules Overview

The CM431690 is a dual Silicon Controlled Rectifier (SCR) module from Powerex Inc., housed in the POW-R-BLOK™ package. It features series-connected SCRs with a maximum repetitive off-state voltage of 1600V and an RMS on-state current of 140A. The average on-state current is rated at 90A, with non-repetitive surge currents of 1730A at 50Hz and 1800A at 60Hz. Maximum gate trigger current is 100mA. Designed for chassis mounting, this component provides isolated heatsinking capabilities suitable for high-power industrial applications.

SCRs - Modules Feature Summary

• Dual SCR configuration with series connection for enhanced voltage handling
• Electrically isolated design allowing direct mounting to common heatsinks
• Robust POW-R-BLOK™ construction utilizing DBC alumina insulator and copper baseplate

SCRs - Modules Applications

• Phase control circuits requiring isolated packaging
• Industrial power conversion systems
• High-voltage DC transmission components

SCRs - Modules Procurement Notes

Verify the specific datasheet revision when sourcing, as electrical characteristics may vary between manufacturing batches. Confirm that the purchased units are RoHS compliant if environmental regulations apply to your assembly process. Ensure compatibility with standard POW-R-BLOK™ mounting hardware for proper thermal interface installation. Check for any specific storage conditions required to maintain device integrity prior to soldering or mounting.

SCRs - Modules Selection Notes

Select the CM431690 when system requirements demand a 1600V blocking capability combined with significant continuous current handling. The dual element structure supports phase control topologies more efficiently than single devices. Consider the isolated nature of the module for simplified thermal management in dense assemblies. Evaluate the surge current ratings against potential fault conditions in the target application circuit.

SCRs - Modules Part Context

This component belongs to the POW-R-BLOK™ family of dual SCR modules from Powerex Inc. These modules are engineered for robust performance in demanding power electronics environments. The series connection of internal elements allows for higher voltage operation while maintaining compact physical dimensions. This specific model represents a standard offering within the manufacturer's thyristor product line.

SCRs - Modules Replacement Considerations

Direct replacements must match the 1600V rating and 140A RMS current specification. Verify pinout compatibility with existing PCB or busbar layouts. Ensure the replacement module maintains the same isolated heatsink architecture to preserve thermal design parameters. Cross-reference mechanical dimensions to confirm fit within the designated enclosure space.