STPS30SM120SR by STMicroelectronics Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。STPS30SM120SR Price reference $ 2.774400。STPS30SM120SR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information STPS30SM120SR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial