UF5403-E3/54 by Vishay Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。UF5403-E3/54 Price reference $ 0.896000。UF5403-E3/54 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information UF5403-E3/54 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial