View smbt2907 datasheet:

PNP Silicon Switching Transistors SMBT 2907 SMBT 2907 A High DC current gain: 0.1 mA to 500 mA Low collector-emitter saturation voltage Complementary types: SMBT 2222, SMBT 2222 A (NPN) Type Marking Ordering Code Pin Configuration Package1) (tape and reel) 1 2 3 SMBT 2907 s2B Q68000-A6501 B E C SOT-23 SMBT 2907 A s2F Q68000-A6474 Maximum Ratings Parameter Symbol Values Unit SMBT 2907 SMBT 2907 A Collector-emitter voltage VCE0 40 60 V Collector-base voltage VCB0 60 Emitter-base voltage VEB0 5 Collector current IC 600 mA Total power dissipation, TS = 77 ?C Ptot 330 mW Junction temperature Tj 150 ?C Storage temperature range Tstg – 65 … + 150 Thermal Resistance Junction - ambient2) Rth JA ? 290 K/W Junction - soldering point Rth JS ? 220 1) For detailed information