SS12 by 星海 Design and production,in One Stai Electronic Co, LTD Spot sales,And can pass One Stai Electronic Co, LTD Purchasing。SS12 Price reference $ 0.013303。SS12 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information SS12 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial