ST's triacs designs and manufacturing technology set the industry standards for a wide range of medium-power TRIACs. Standard and Snubberless triacs belong to our STPOWER family.
Our 3-quadrant 1200 V triacs target industrial 3-phase equipment with secured transient immunity.
ST's 600-800 V 3Q and 4Q triacs have 5 to 50 mA gate options on a 0.8 to 40 A span of current ratings. The package range covers surface-mount SMB flat to ceramic-insulated heavy-duty TOP-3 packages (T2650-6PF, T4050-6PF).
The diac is both a phase-angle trigger complement for triacs in dimmers and an ignition sequence helper in power supplies of lighting electronics such as compact fluorescent lamps (CFL), tube lamps (TL), and LED lighting solutions.
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ST’s 8H Triacs have been designed for Industrial, Building, Residential, Appliances. Based on the new ST’s technology, the 8H Triacs are able to work at 800V & 150°C without compromise. It makes 8H Triacs the right choice to run in very hot confined electronic environment and improve the reliability of your system. Thanks to 8H Triacs robust dynamic turn-off commutation and high noise immunity at high temperature you can reduce your system size while increasing functional safety.
- T835 8A Snubberless™ Triacs in DPAK and D2PAK
- T1250 12A - Snubberless™ Triac in D2PAK
- T810 8A Logic Level Triacs in DPAK and D2PAK
- T2550-12I 25 A , 1200 V , Snubberless in TO-220AB Ins. Triac
- T4050-6PF 40A 600V Snubberless Triac in TO-3PF package
- T1050 800V, 10A Snubberless? Triac in D2PAK
- T1205 12A - 600V - Logic Level Triac in D2PAK
- T1035 600V, 10A Snubberless? Triac in D2PAK
- T1610 16A Logic Level Triac in D2PAK
- BTB41 40A standard Triacs
- BTA06 6A standard and Snubberless™ Triacs
- BTA08 8A standard and Snubberless™ Triacs
- T405Q-600 4A sensitive Triacs
- T2650-6PF 26A 600V Snubberless Triac in TO-3PF package
- T2550-12G 25 A , 1200 V , Snubberless , in D2PAK Triac
- T2550-12T 25 A , 1200 V , Snubberless in TO-220AB Triac
- BTA26 25A standard and Snubberless™ Triacs
- BTB26 25A standard Triacs
- BTA20 20 A Snubberless™ Triacs
- BTA25 25A standard and Snubberless™ Triacs
- T16T 16A Snubberless™ and logic level Triacs
- T850 8A Snubberless™ Triacs in D2PAK
- BTA12 12A standard and Snubberless™ Triacs
- T1605G-6I 16 A Logic Level Triac for LED Light Dimmers
- BTA16 16A standard and Snubberless™ Triacs
- T830-8FP 8 A Snubberless™ Triac
- T1650 16A Snubberless™ Triacs in D2PAK
- TPDVxx40 40A high-voltage Triacs
- BTB12 12A standard and Snubberless™ Triacs
- BTB16 16A standard and Snubberless™ Triacs
- BTB08 8A standard and Snubberless™ Triacs
- T25 25A Snubberless™ Triacs in D2PAK
- BTB10 10A standard and Snubberless™ Triacs
- TXDVxx12 12A high-voltage Triacs
- BTB04-600SL 4A Standard Triac
- BTB06 6A standard and Snubberless™ Triacs
- TPDVxx25 25A high voltage Triacs
- BTA10 10A standard and Snubberless™ Triacs
- T405T-6FP 4A Logic Level Triac
- BTA24 25A Snubberless™ Triacs
- BTA10-600GP 10A Triac for Light Dimmer
- Z01 1A Standard Triacs
- Z00607 0.8A standard Triacs
- BTA40 40A standard Triacs
- BTA41 40A standard Triacs
- T1235 12A Snubberless™ Triacs in D2PAK
- BTB24 25A standard and Snubberless™ Triacs
- T1635 16A Snubberless™ Triacs in D2PAK
- T435 4A Snubberless™ Triacs
- T410 4A logic level Triacs
- T1210 12A - Logic Level Triac in D2PAK
- T405 4A logic level Triacs
- Z0109M1 600V, 1A, Standard Triac in SO-8
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Thermal-electrical Simulators for Components
AC Switches Simulator
Select ratings and application waveforms Get junction temperature and blocking voltage graphs Search and sort suitable devices 
Rectifier Diodes Simulator
Select ratings and application waveforms Estimate power losses Search and sort suitable devices 
STPOWER Studio
Supports long mission profiles Provides power loss and temperature graphs Helps define heatsink thermal properties 
Twister Sim
Help select the right ViPOWER Automotive power device Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis Supports various PCB configurations 
TVS Simulator
Specify system ratings and surge waveform Search and sort suitable devices