View bc107 datasheet:

BC107 BC108-BC109 LOW NOISE GENERAL PURPOSE AUDIO AMPLIFIERS DESCRIPTION The BC107, BC108 and BC109 are silicon planar epitaxial NPN transistors in TO-18 metal case.They are suitable for use in driver stages, low noise input stages and signal processing circuits of television receivers. The complementary PNP types are re- spectively the BC177, BC178 and BC179. TO-18 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Value Symbol Parameter Unit BC107 BC108 BC109 VCBO Collector-base Voltage (IE =0) 50 30 30 V VCEO Collector-emitter Voltage (IB = 0) 45 20 20 V VEBO Emitter-base Voltage (IC =0) 6 5 5 V IC Collector Current 100 mA Pto t Total Power Dissipation 0.3 W at T ? 25 °C amb 0.75 W at Tcase ? 25 °C Tstg Storage Temperature – 55 to 175 °C T Junction Temperature