2N3904 Datasheet, 2N3904 PDF, 2N3904 Data sheet, 2N3904 manual, 2N3904 pdf, 2N3904, datenblatt, Electronics 2N3904, alldatasheet, free, datasheet, Datasheets, data ... Browse DigiKey's inventory of NPN TransistorsNPN. Features, Specifications, Alternative Product, Product Training Modules, and Datasheets are all available. ©Semiconductor Components Industries, LLC, 2007 April, 2007 -- Rev. 3 1 Publication Order Number: MPSA28/D MPSA28, MPSA29 MPSA29 is a Preferred Device Darlington Transistors NPN Silicon NPN switching transistor 2N3904 DATA SHEET STATUS Notes 1. Please consult the most recently issued data sheet before initiating or completing a design. 2. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. 2N3904 Transistor and Specifications. 2N3904 Datasheet. 2N3904 Circuits. The 2N3904 is common general-purpose low-power NPN transistor used amplifying or switching applications. It is typically used for low-current, medium voltage, and moderate speed purposes.