T1235T-8G-TR

Triacs Overview

The T1235T-8G-TR is a bidirectional triac from STMicroelectronics, part of the Snubberless T-Series. It features an RMS on-state current of 12 A and a rated repetitive off-state voltage of 800 V. The device supports a non-repetitive surge current of 95 A and operates within a junction temperature range of -40°C to +150°C. Key electrical parameters include a maximum holding current of 40 mA, a gate trigger voltage of 1.3 V, and a gate trigger current of 35 mA. It exhibits an on-state voltage of 1.6 V and a leakage current of 5 µA at VDRM. The component is housed in a D2PAK-3 (TO-263-3) surface-mount package.

Triacs Feature Summary

• Snubberless operation capability for general-purpose AC switching without external RC circuits
• High static dV/dt and dynamic turn-off commutation performance
• Three-quadrant triggering functionality
• Ecopack 2 compliant packaging with UL-94 V0 flammability rating

Triacs Applications

• On/off or phase angle control in general purpose AC switching
• Control of universal motors requiring high commutation capability
• Inductive load management in home appliances

Triacs Procurement Notes

Verify the specific ordering suffix against official documentation to confirm tape-and-reel packaging configuration. Ensure the requested part number matches the exact voltage and current ratings required for the target application circuit design.

Triacs Selection Notes

Select this component for applications requiring robust AC switching with high noise immunity. The extended 150°C junction temperature rating provides thermal margin for compact designs. Verify that the gate drive circuit can supply the specified trigger current requirements under all operating conditions.

Triacs Part Context

This device belongs to the T1235T series of medium-current triacs. It shares core electrical characteristics with other variants in the family but differs in packaging and reel specifications. The T-series designation indicates compatibility with ST's Snubberless technology platform for simplified circuit design.

Triacs Replacement Considerations

Direct substitutes include T1235T-8G for tube packaging. Other T1235T variants may offer different voltage ratings or package types. Verify pinout compatibility and thermal resistance values when considering alternative manufacturers.