CD431490B

SCRs - Modules Overview

The Powerex CD431490B is a Silicon Controlled Rectifier (SCR) designed for high-power industrial applications. It features a peak repetitive reverse voltage of 1400V and a maximum average on-state current of 110A. The device utilizes the POW-R-BLOK-7 package, which provides robust thermal management and mechanical stability. This component is engineered to handle significant surge currents and offers reliable performance in demanding electrical environments requiring precise control of high power levels.

SCRs - Modules Feature Summary

• High-voltage blocking capability suitable for industrial power conversion
• Robust mechanical construction with integrated heat sink base
• Optimized gate trigger characteristics for reliable switching

SCRs - Modules Applications

• Industrial motor drives and variable frequency drives
• High-power DC-to-AC inversion systems
• Resistive and inductive load control circuits

SCRs - Modules Procurement Notes

Verify the specific manufacturer datasheet for the CD431490B to confirm exact thermal resistance values and gate trigger parameters. Ensure the procurement source provides original manufacturer documentation to validate authenticity. Cross-reference the part number with official Powerex catalogs to confirm availability and any recent design updates or obsolescence notices.

SCRs - Modules Selection Notes

Select this component based on its 1400V rating and 110A current capacity relative to the system's peak voltage and continuous load requirements. Consider the POW-R-BLOK-7 package dimensions for PCB layout and heatsinking compatibility. Evaluate the thermal impedance characteristics to ensure adequate cooling solutions are implemented for sustained operation under full load conditions.

SCRs - Modules Part Context

This SCR belongs to Powerex's high-performance thyristor family, known for reliability in heavy-duty applications. The POW-R-BLOK series is widely recognized for its compact form factor and superior thermal conductivity compared to traditional stud-mounted devices. It serves as a critical switching element in modern power electronics architectures.

SCRs - Modules Replacement Considerations

Consult official Powerex substitution guides for direct equivalents. Verify that any alternative device matches the 1400V rating, 110A current handling, and POW-R-BLOK-7 package footprint to ensure mechanical and electrical compatibility without redesigning the host circuit.