View 2sc5091 datasheet:

2SC5091 TOSHIBA Transistor Silicon NPN Epitaxial Planar Type 2SC5091 VHF~UHF Band Low Noise Amplifier Applications Unit: mm • Low noise figure, high gain. • NF = 1.1dB, |S |2 = 13dB (f = 1 GHz) 21e Maximum Ratings (Ta = = 25°C) = = Characteristics Symbol Rating Unit Collector-base voltage VCBO 20 V Collector-emitter voltage VCEO 10 V Emitter-base voltage VEBO 1.5 V Base current IB 20 mA Collector current IC 40 mA Collector power dissipation PC 100 mW Junction temperature Tj 125 °C Storage temperature range Tstg -55~125 °C JEDEC ? JEITA ? TOSHIBA 2-2H1A Weight: 2.4 mg (typ.) Microwave Characteristics (Ta = = 25°C) = = Characteristics Symbol Test Condition Min Typ. Max Unit Transition frequency fT VCE = 8 V, IC = 20 mA 7 10 ? GHz ?S21e?2 (1) VCE =