STP400N4F6 by STMicroelectronics Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。STP400N4F6 Price reference $ 7.330000。STP400N4F6 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information STP400N4F6 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial