View 2sc4919 datasheet:

Ordering number:EN4765 NPN Epitaxial Planar Silicon Transistor 2SC4919 Muting Circuit Applications Features Package Dimensions · Very small-sized package permitting 2SC4919- unit:mm applied sets to be made smaller and slimmer. 2106A · Small output capacitance. [2SC4909] · Low collector-to-emitter saturation voltage. 0.75 0.3 0.6 · Small ON resistance. 0 to 0.1 0.2 0.1 0.5 0.5 1.6 1 : Base 2 : Emitter 3 : Collector SANYO : SMCP Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO 25 V Collector-to-Emitter Voltage VCEO 15 V Emitter-to-Base Voltage VEBO 5 V Collector Current IC 100 mA Collector Current (Pulse) ICP 200 mA Base Current IB 20 mA Collector Dissipation PC 150 mW Junction T