TLHR4900 by Vishay Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。TLHR4900 Price reference $ 0.742000。TLHR4900 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TLHR4900 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial