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DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D186 BC549; BC550 NPN general purpose transistors 1999 Apr 22 Product specification Supersedes data of 1997 Jun 20 Philips Semiconductors Product specification NPN general purpose transistors BC549; BC550 FEATURES PINNING Low current (max. 100 mA) PIN DESCRIPTION Low voltage (max. 45 V). 1 emitter 2 base APPLICATIONS 3 collector Low noise stages in audio frequency equipment. 1 DESCRIPTION handbook, halfpage 3 2 3 NPN transistor in a TO-92; SOT54 plastic package. 2 PNP complements BC559 and BC560. 1 MAM182 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 BC549 - 30 V BC550 - 50 V VCEO collector-emitter voltage open bas