C1156h datasheet 2n3904


Since the 2N3904 is an NPN transistor, that means the base needs positive biasing (appropriate voltage levels and resistance) to turn on the collector emitter junction for proper current flow. Use of a load resistor (R1 above) is also important so there is not too much current being driven through the LED and transistor. 1996. 1. 28 1/3 semiconductor technical data kn3904 epitaxial planar npn transistor revision no : 0 general purpose application. switching application. Since the 2N3904 is an NPN transistor, that means the base needs positive biasing (appropriate voltage levels and resistance) to turn on the collector emitter junction for proper current flow. Use of a load resistor (R1 above) is also important so there is not too much current being driven through the LED and transistor. 1999 Apr 235Philips SemiconductorsProduct specificationNPN switching transistor2N3904PACKAGE OUTLINEUNITAREFERENCES datasheet search, datasheets, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes and other semiconductors. tran 2n3904 npn 60v 200ma gen purp to92 – Information on datasheets The Transistor (NPN) • A current amplifier … – Makes small currents BIGGER • The 2N3904 Transistor β = 30-400 C= Collector B = Base E = Emitter Important 2N3904 Specifications from the datasheet Note high maximum ratings BUT 200mA maximum current 2N3904 Datasheet • Posted on the ME456 website