STPM34TR by STMicroelectronics Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。STPM34TR Price reference $ 3.223200。STPM34TR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information STPM34TR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial