T1235T-8R

Triacs Overview

The T1235T-8R is a 12 A Snubberless Triac from STMicroelectronics, housed in an I²PAK package designed for low-profile compact applications. It features a fully rated 150 °C junction temperature, enabling high AC commutation capability for on/off or phase control without snubber circuits. Key electrical parameters include a 12 A RMS current, 800 V blocking voltage, and 1.6 V on-state voltage. The device supports three triggering quadrants with high noise immunity and dynamic commutation, complying with ECOPACK® 2 standards.

Triacs Feature Summary

• Snubberless operation allows use without RC snubber circuits under defined limits
• High static dV/dt provides immunity to false turn-on
• Robust dynamic turn-off commutation (dl/dt)c ensures reliability
• Three-quadrant triggering capability

Triacs Applications

• On/off AC switching
• Phase angle control
• General purpose AC switching requiring high commutation capability

Triacs Procurement Notes

Verify the specific suffix 'R' against the official datasheet to confirm tape-and-reel packaging versus tube. Ensure the I²PAK footprint matches the PCB design. Confirm RoHS and halogen-free compliance via the ECOPACK 2 certification details provided in the manufacturer's documentation before finalizing procurement.

Triacs Selection Notes

Select this component when a low-profile SMD solution is required for 12 A loads. The I²PAK package offers thermal advantages over standard DPAK variants. Verify that the application operates within the three-quadrant triggering limits and respects the surge voltage ratings of 900 V to ensure safe operation without external snubber networks.

Triacs Part Context

This part belongs to the T1235T series of Snubberless Triacs. It shares core electrical characteristics with the T1235T-8G and T1235T-8I but differs in packaging. The 'R' suffix typically denotes reel packaging, distinguishing it from the tube-packaged 'G' variant while maintaining identical functional performance.

Triacs Replacement Considerations

The T1235T-8G is a direct functional substitute with identical electrical ratings but uses D2PAK packaging. The T1235T-8I serves as a through-hole alternative. Verify package compatibility and thermal resistance differences when substituting.