2sc6139.pdf datasheet:

2SC6139 TOSHIBA Transistor Silicon NPN Epitaxial Type 2SC6139 Audio Frequency Amplifier Applications Unit: mm High collector voltage : VCEO = 160 V (min) Small collector output capacitance : Cob = 12pF (typ.) High transition frequency : fT = 100MHz (typ.) Complementary to 2SA2219 Absolute Maximum Ratings (Ta = 25C) Characteristics Symbol Rating UnitCollector-base voltage VCBO 160 VCollector-emitter voltage VCEO 160 VEmitter-base voltage VEBO 6 V DC IC 1.5 ACollector current Pulse ICP 2.5A Base current IB 0.5 ACollector power dissipation PC 1 WJEDEC Junction temperature Tj 150 CStorage temperature range Tstg -55 to 150 C JEITA TOSHIBA 2-7D101ANote 1: Ensure that the channel temperature does not exceed 150C during use of the device. Weight : 0.2 g (typ.) Note 2: Using continuously under heavy l