View 2sc4738 datasheet:

2SC4738 TOSHIBA Transistor Silicon NPN Epitaxial Type (PCT process) 2SC4738 Audio Frequency General Purpose Amplifier Applications Unit: mm • High voltage and high current: VCEO = 50 V, I = 150 mA (max) C • Excellent h linearity: h (I = 0.1 mA)/ h (I = 2 mA) FE FE C FE C = 0.95 (typ.) • High h : h = 120~700 FE FE • Complementary to 2SA1832 • Small package Maximum Ratings (Ta = = 25°C) = = Characteristics Symbol Rating Unit Collector-base voltage VCBO 60 V Collector-emitter voltage VCEO 50 V Emitter-base voltage VEBO 5 V Collector current IC 150 mA Base current IB 30 mA JEDEC ? Collector power dissipation PC 100 mW Junction temperature Tj 125 °C JEITA ? Storage temperature range Tstg -55~125 °C TOSHIBA 2-2H1A Weight: 2.4 mg (typ.) Electrical Ch