View bc160 datasheet:

BC160 BC161 GENERAL PURPOSE TRANSISTORS DESCRIPTION The BC160, and BC161 are silicon planar epitaxial PNP transistors in TO-39 metal case.They are par- ticurlarly designed foraudio amplifiers and switching applications up to 1A. The complementary NPN types are the BC140 and BC141. TO-39 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Value Symbol Parameter Unit BC160 BC161 VCBO Collector-base Voltage (IE =0) – 40 – 60 V VCEO Collector-emitter Voltage (IB = 0) – 40 – 60 V VEBO Emitter-base Voltage (IC =0) – 5 V IC Collector Current – 1 A IB Base Current – 0.1 A Pto t Total Power Dissipation at T ? 45 °C 0.65 W amb at Tcase ? 45 °C 3.7 W Tstg Storage Temperature – 55 to 175 °C T Junction Temperature 175 °C j January 1989 1/5 BC160-BC161 THERMAL DATA Rth j-c