TL441CNSR by Texas Instruments(TI) Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。TL441CNSR Price reference $ 3.194660。TL441CNSR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TL441CNSR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial