SR2UABU by STMicroelectronics Design and production,in TanJiayuan Electronics Spot sales,And can pass TanJiayuan Electronics Purchasing。SR2UABU Price reference ¥ 6.725082。SR2UABU - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information SR2UABU Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial