View 2sc4433 datasheet:

Ordering number:EN3553 NPN Epitaxial Planar Silicon Transistor 2SC4433 HF Amplifier Applications Features Package Dimensions · High power gain : PG=28dB typ (f=100MHz). unit:mm · High cutoff frequency : fT=750MHz typ. 2033A · Small Cob, Cre. [2SC4433] 2.2 4.0 0.4 0.5 0.4 0.4 1 2 3 1 : Emitter 1.3 1.3 2 : Collector 3 : Base 3.0 3.8 SANYO : SPA Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO 40 V Collector-to-Emitter Voltage VCEO 18 V Emitter-to-Base Voltage VEBO 3 V Collector Current IC 50 mA Collector Dissipation PC 300 mW Junction Temperature Tj 150 ?C Storage Temperature Tstg –55 to +150 ?C Electrical Characteristics at Ta = 25?C Ratings Parameter Symbol Conditions Unit