TOSHIBA Transistor Silicon NPN Epitaxial Planar Type 2SC4246 TV Tuner, UHF Oscillator Applications (common base) TV Tuner, UHF Converter Applications (common base) 2SC4246 Unit: mm Transition frequency is high and dependent on current excellently. Maximum Ratings (Ta = 25°C) Characteristics Collector-base voltage Collector-emitter voltage Emitter-base voltage Base current Collector current Collector power dissipation Junction temperature Storage temperature range Symbol VCBO VCEO VEBO.