CD421290C

SCRs - Modules Overview

The Powerex CD421290C is a POW-R-BLOK dual SCR/diode isolated module designed for high-power industrial applications. It features a series configuration containing one Silicon Controlled Rectifier (SCR) and one diode within a single module package. The device supports a maximum repetitive peak reverse voltage of 1200 V and an average on-state current of 90 A. It handles a non-repetitive surge current of 1600 A at 50 Hz. The module operates within a junction temperature range of -40°C to 125°C and complies with RoHS3 standards.

SCRs - Modules Feature Summary

• Dual component integration combining one SCR and one diode in a single isolated module
• High thermal stability supporting operation up to 125°C junction temperature
• Robust surge current capability for handling transient electrical loads

SCRs - Modules Applications

• Industrial motor drives and variable frequency drives
• DC power supply rectification circuits
• Inverter systems for renewable energy applications

SCRs - Modules Procurement Notes

Verify the specific voltage rating suffix against official datasheets, as variations exist within the CD42 family. Confirm RoHS3 compliance status directly with the manufacturer or authorized distributors. Ensure thermal interface materials are compatible with the module's mounting requirements for optimal heat dissipation during operation.

SCRs - Modules Selection Notes

Select this module based on its 1200 V blocking voltage and 90 A continuous current capacity. Evaluate the thermal resistance characteristics to ensure adequate heatsinking for the intended duty cycle. Compare the gate trigger specifications with the driving circuit capabilities to ensure reliable turn-on performance under varying load conditions.

SCRs - Modules Part Context

This component belongs to the Powerex CD42 series of POW-R-BLOK modules, which are widely used in medium to high-power electronic conversion systems. The series offers various voltage and current ratings to suit different industrial requirements while maintaining a standardized module footprint for easy integration into existing power electronics designs.

SCRs - Modules Replacement Considerations

Direct replacements may include other CD42 series variants with matching current ratings but different voltage codes, such as CD421490C for higher voltage applications. Cross-brand equivalents require careful verification of pinout compatibility, thermal characteristics, and electrical parameters to ensure system integrity.