STPS40SM120CT by STMicroelectronics Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。STPS40SM120CT Price reference $ 2.890000。STPS40SM120CT - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information STPS40SM120CT Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial