BFU550R by NXP Semiconductors Design and production,in Ruishengda Information Technology Co., Limited Spot sales,And can pass Ruishengda Information Technology Co., Limited Purchasing。BFU550R Price reference $ 0.155000。BFU550R - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information BFU550R Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial