CD430890C

SCRs - Modules Overview

The Powerex CD430890C is a Dual SCR Isolated POW-R-BLOK module rated for 90 Amperes average forward current and up to 1800 Volts repetitive peak blocking voltage. It features electrically isolated heatsinking, compression bonded construction for increased power cycling capability, and low thermal impedance. The module supports RMS forward currents of 141 A at 85°C case temperature and offers a non-repetitive peak surge current of 2000 A. Electrical isolation is rated at 2500 Vrms. Key electrical parameters include a maximum gate trigger current of 100 mA, a minimum dV/dt of 800 V/µs, and a junction-to-case thermal resistance of 0.28 °C/W per junction.

SCRs - Modules Feature Summary

• Electrically isolated heatsinking eliminates the need for additional insulation components
• Compression bonded design enhances power cycling capability
• Low thermal impedance improves overall current handling capacity

SCRs - Modules Applications

• Bridge Circuits
• AC & DC Motor Drives
• Battery Supplies
• Power Supplies
• Large IGBT Circuit Front Ends

SCRs - Modules Procurement Notes

Verify the specific voltage rating suffix (e.g., 08, 12, 14, 16, 18) when ordering, as the base part number CD43__90C represents a family with varying voltage capabilities up to 1800 Volts. Confirm RoHS compliance and UL recognition status through official manufacturer documentation prior to procurement.

SCRs - Modules Selection Notes

Select this module for phase control applications requiring isolated packaging on common heatsinks. Ensure the operating junction temperature remains within -40 to +125 °C. Verify that the required repetitive peak forward and reverse blocking voltage meets or exceeds the system's maximum voltage requirements before finalizing the selection.

SCRs - Modules Part Context

This component belongs to the CD43__90C series of Dual SCR Isolated POW-R-BLOK modules manufactured by Powerex, Inc. The series provides standardized high-power thyristor solutions designed for robust industrial environments with simplified mounting requirements.

SCRs - Modules Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Powerex technical support for direct replacements or cross-reference options based on specific electrical and mechanical constraints.