STのACSトライアック（ACST）はトライアックとして機能しますが、過渡電圧クランプ機能と吸収機能が強化されています。
負荷整流が生成する過渡電圧や、IEC 61000-4-5に記述されているようなACラインに起因する過渡電圧は、いずれもデバイスとシステムがうまく吸収します。ACSTのクランプおよびクローバ機能によって、システムとACSTにとって安全な過渡動作が保証されます。したがって、MOVやスナバ回路が不要になり、回路が簡素化されます。
これらのデバイスには800Vのブロック機能があり、標準またはロジック･レベルのゲートを選択できます。
これらは、Fullpack、IPAK、DPAK、D²PAK、またはI²PAKパッケージで提供されます。
注目ビデオ
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.
Increase immunity and reduce BOM with new 800 V AC switch
- ACST310-8B Overvoltage protected AC switch
- ACST1035-8FP 10 A 800 V Over-voltage protected AC switch
- ACST12 Overvoltage protected AC switch
- ACST6 Overvoltage protected AC switch
- ACST310-8FP Overvoltage protected AC switch
- ACST8 Overvoltage protected AC switch
- ACST4 4 A - 800 V Overvoltage protected AC switch
- ACST2 Overvoltage protected AC switch
- ACST1635-8FP Overvoltage protected AC switch
- ACST1235-8FP 12 A 800 V Over-voltage protected AC switch
- ACST10 Overvoltage protected AC switch
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