STTH3R04S by ST Design and production,in HongKong RichShine Technology Co., Limited Spot sales,And can pass HongKong RichShine Technology Co., Limited Purchasing。STTH3R04S Price reference $ 0.227850。STTH3R04S - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information STTH3R04S Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial