T2650-6PF

Overview

The T2650-6PF is a Snubberless Triac in a TO-3PF package designed for general-purpose AC switching. It supports an RMS on-state current of 26 A and offers a repetitive peak off-state voltage of 600 V, with a surge voltage rating of 700 V. The device features high static and dynamic commutation capabilities, including a critical rate of rise of on-state current (dI/dt)c of 22 A/ms and dV/dt immunity of 1000 V/µs. It includes an insulated tab rated at 2500 V rms and complies with UL-1557 standards.

Feature Summary

• Snubberless design enabling high static and dynamic commutation without external components
• Insulated tab providing 2500 V rms isolation for industrial safety requirements
• UL recognized component compliant with UL-1557 standard
• ECOPACK2 compliant packaging ensuring RoHS and halogen-free compliance

Applications

• On/off function in static relays and heating regulation circuits
• Induction motor starting circuits requiring high surge current handling
• Phase control operations in light dimmers and motor speed controllers
• SMPS inrush current limiter applications

Procurement Notes

Verify the specific ordering code T2650-6PF against the latest STMicroelectronics datasheet DS13555 to confirm current product status and availability. Ensure that thermal management designs adhere to Application Note AN533 for proper heatsink dimensioning. Confirm that the TO-3PF package mounting torque remains within the recommended 0.8 N·m limit during assembly to maintain mechanical integrity and electrical performance.

Selection Notes

Select this component for industrial AC switching systems where high immunity and surge current capacity are critical. The 26 A RMS rating allows for AC switching systems up to 3 kW at 120 V AC mains when paired with appropriate cooling. Consider the 600 V blocking voltage and 700 V surge capability for robustness against line transients. The snubberless feature simplifies circuit design by eliminating external RC networks typically required for dV/dt protection.

Part Context

This part belongs to the STMicroelectronics T-series of Snubberless Triacs, specifically engineered for high-current applications. It utilizes the TO-3PF power package, which facilitates efficient heat dissipation through the insulated tab. The device is part of a broader family of AC switching solutions designed to replace traditional triacs in demanding environments, offering improved commutation characteristics and simplified system architecture.

Replacement Considerations

Direct pin-compatible replacements within the same series include other T26xx variants with different voltage ratings or gate trigger currents. Verify that any substitute maintains the TO-3PF package dimensions and the 2500 V rms insulation rating. Ensure the replacement device meets or exceeds the 22 A/ms (dI/dt)c and 1000 V/µs dV/dt specifications to preserve system reliability.