View 2sc4855 datasheet:

Ordering number:EN4759 NPN Epitaxial Planar Silicon Transistor 2SC4855 Low-Voltage, Low-Current& High-Frequency Amplifier Applications Features Package Dimensions · Low-voltage, low-current operation : fT=5GHz typ. unit:mm 2 (VCE=1V, IC=1mA) : ? S21e? =7.5dB typ 2110A (f=1GHz). [2SC4855] 1.9 : NF=2.6dB typ (f=1GHz). 0.95 0.95 0.4 0.16 4 3 0 to 0.1 2 1 0.6 0.95 0.85 1 : Emitter 2.9 2 : Collector 3 : Emitter 4 : Base SANYO : CP4 Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO 12 V Collector-to-Emitter Voltage VCEO 6 V Emitter-to-Base Voltage VEBO 1.5 V Collector Current IC 15 mA Collector Dissipation PC 80 mW Junction Temperature Tj 150 ?C Storage Temperature Tstg –55 to +150