T820169004DH

Overview

The Powerex T820169004DH is a Phase Control Silicon Controlled Rectifier (SCR) module rated for 1600 Volts and 900 Amperes average current. It utilizes an all-diffused, Press-Pak hermetic Pow-R-Disc construction with an amplifying gate structure. The device supports RMS on-state currents of 1410 A at 70°C case temperature and 1725 A at 55°C. It features a typical turn-off time of 200 µs and handles non-repetitive surge currents up to 15,000 A at 60 Hz. Thermal resistance from junction to case is 0.037 °C/W.

Feature Summary

• Hermetic packaging utilizing the Pow-R-Disc design for reliable operation in demanding environments
• Amplifying gate structure providing high di/dt and dv/dt capabilities
• Low on-state voltage characteristics for improved efficiency
• Excellent surge and I²t ratings for robust fault handling

Applications

• Power Supplies
• Motor Control

Procurement Notes

Verify the complete twelve-digit part number against manufacturer documentation to ensure correct voltage and current ratings. Confirm that the specific ordering suffix matches the required lead type and gate current specifications. Cross-reference thermal management requirements with the provided derating curves to ensure proper heat sink selection and mounting force application during installation.

Selection Notes

Select this component for phase control applications requiring high voltage blocking and significant average current handling. Evaluate the thermal resistance values and maximum allowable case temperatures against the intended operating environment. Ensure the gate trigger parameters align with the driving circuit capabilities. Consider the physical dimensions and mounting force requirements for the mechanical assembly design.

Part Context

This device belongs to the T820 900A series of Phase Control SCRs manufactured by Powerex Inc. The series offers various voltage ratings ranging from 200V to 1800V while maintaining a consistent 900A average current capability. These modules are designed for industrial power conversion systems where reliability and high performance are critical.

Replacement Considerations

Consult official Powerex documentation for direct substitutes within the T820 series or equivalent high-power SCR modules. Verify that any replacement maintains identical voltage ratings, current capacities, and package dimensions to ensure compatibility with existing thermal and mechanical designs.