View bc847 datasheet:

BC847 SMALL SIGNAL NPN TRANSISTORS Type Marking BC847B 1F SILICON EPITAXIAL PLANAR NPN TRANSISTORS MINIATURE PLASTIC PACKAGE FOR APPLICATION IN SURFACE MOUNTING 2 CIRCUITS LOW LEVEL GENERAL PURPOSE 3 PNP COMPLEMENT IS BC857 1 SOT-23 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V Collector-Emitter Voltage (V = 0) 50 V CES BE V Collector-Base Voltage (I = 0) 50 V CBO E V Collector-Emitter Voltage (I = 0) 45 V CEO B VEBO Emitter-Base Voltage (IC = 0) 6 V IC Collector Current 0.1 A I Collector Peak Current 0.2 A CM IBM Base Peak Current 0.2 A I Emitter Peak Current 0.2 A EM o P Total Dissipation at T = 25 C 300 mW tot c o Tstg Storage Temperature -65 to 150 C o T Max. Operating Junction Temperature 150 C j 1/4 Octob