2N3773 by STMicroelectronics Design and production,in Sunli LLC Spot sales,And can pass Sunli LLC Purchasing。2N3773 Price reference $ 0。2N3773 - 。You can download 2N3773 Chinese information、Pin map、DatasheetData sheet function specification,In the information 2N3773 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial