T7H8026504DN

SCRs - Modules Overview

The Powerex T7H8166504DN is a Phase Control Silicon Controlled Rectifier (SCR) with an average on-state current rating of 650 Amperes and a repetitive peak reverse blocking voltage of 1600 Volts. It features a typical turn-off time of 150 microseconds and requires a gate trigger current of 150 mA. The device utilizes an all-diffused, Press-Pak hermetic Pow-R-Disc construction with an amplifying gate structure.

SCRs - Modules Feature Summary

• All-diffused, Press-Pak hermetic Pow-R-Disc construction
• Amplifying gate structure for reliable triggering
• High di/dt and dv/dt capabilities
• Excellent surge and I²t ratings

SCRs - Modules Applications

• Power Supplies
• Motor Control

SCRs - Modules Procurement Notes

Verify the complete 12-digit part number against official Powerex documentation to ensure correct voltage and current specifications. Confirm mounting force requirements between 2000 to 2400 lb are met in the application design. Check thermal resistance values for double-sided cooling configurations during system integration planning.

SCRs - Modules Selection Notes

Select this component for phase control applications requiring high average current handling and robust surge protection. Ensure the operating junction temperature remains within -40 to +125 °C limits. Verify that the critical rate-of-rise of on-state current does not exceed 600 A/μsec for non-repetitive conditions or 150 A/μsec for repetitive conditions.

SCRs - Modules Part Context

This device belongs to the Powerex T7H8 series of Phase Control SCRs. The series offers various voltage ratings from 200V to 1800V while maintaining a consistent 650A average current capability across different models. The specific suffix indicates the voltage rating and package configuration within the standardized lineup.

SCRs - Modules Replacement Considerations

Consult official Powerex documentation for direct substitute part numbers within the T7H8 series or equivalent families. Verify electrical parameters such as VRRM, IT(AV), and tq match application requirements before substitution.

SCRs - Modules FAQ

What is the maximum non-repetitive transient peak reverse blocking voltage?

The maximum non-repetitive transient peak reverse blocking voltage is VRRM + 100V.

What is the typical turn-on time for this SCR?

The typical turn-on time is 7 µs when tested at IT = 100A and VD = 100 V.

What is the minimum critical dv/dt rating?

The minimum critical dv/dt is 300 V/µs at TJ = 125°C with exponential voltage rise to VDRM.