1N4448 by STMicroelectronics Design and production,in Positive energy website building service Spot sales,And can pass Positive energy website building service Purchasing。1N4448 Price reference $ 0.009666。1N4448 - 。You can download 1N4448 Chinese information、Pin map、DatasheetData sheet function specification，In the information 1N4448 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial
