4N35 by Vishay Design and production,in Ruishengda Information Technology Co., Limited Spot sales,And can pass Ruishengda Information Technology Co., Limited Purchasing。4N35 Price reference $ 0.600000。4N35 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information 4N35 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial