SRK2001A by STMicroelectronics Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。SRK2001A Price reference $ 0.903150。SRK2001A - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information SRK2001A Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial