View 2sc5585 datasheet:

2SC5585 Transistors Low Frequency Transistor (50V, 2A) 2SC5585 The transistor of 500mA class which went only into 2125 size conventionally was attained in 1608 sizes. External dimensions (Units : mm) Features 1) High current. 1.6±0.2 2) Low VCE(sat). 1.0±0.1 0.7±0.1 0.5 0.5 VCE(sat) ? 250mV at IC = 200mA / IB = 10mA +0.1 +0.1 0.2 -0.05 0.55±0.1 0.2 -0.05 (1) (2) 0~0.1 (3) Structure +0.1 0.3 -0.05 0.15±0.05 For switching For muting ROHM : EMT3 (1) EMITTER (2) BASE (3) COLLECTOR Absolute maximum ratings (Ta = 25°C) Parameter Symbol Limits Unit Collectot-base voltage VCBO 15 V Collector-emitter voltage VCEO 12 V IC 500 mA Collector current ICP 1 A ? Collector power dissipation PC 150 mW Junction temperature Tj 150 °C Storage temperature Tstg -5