View 2n3904 3 datasheet:

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D186 2N3904 NPN switching transistor 1999 Apr 23 Product specification Supersedes data of 1997 Jul 15 Philips Semiconductors Product specification NPN switching transistor 2N3904 FEATURES PINNING • Low current (max. 200 mA) PIN DESCRIPTION • Low voltage (max. 40 V). 1 collector 2 base APPLICATIONS 3 emitter • High-speed switching. DESCRIPTION 1 handbook, halfpage 1 2 NPN switching transistor in a TO-92; SOT54 plastic 3 2 package. PNP complement: 2N3906. 3 MAM279 Fig.1 Simplified outline (TO-92; SOT54) and symbol. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VCBO collector-base voltage open emitter - 60 V VCEO collector-emit