STPS30SM120ST by STMicroelectronics Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。STPS30SM120ST Price reference $ 1.200000。STPS30SM120ST - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information STPS30SM120ST Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial