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2011-09-21 1 BF799W NPN Silicon RF Transistor • For linear broadband amplifier application up to 500 MHz • SAW filter driver in TV tuners • Pb-free (RoHS compliant) package 1 2 3 TypeMarkingPin ConfigurationPackage BF799WLKs1 = B2 = E3 = CSOT323 Maximum Ratings Parameter SymbolValueUnit Collector-emitter voltageV CEO 20V Collector-emitter voltageV CES 30 Collector-base voltageV CBO 30 Emitter-base voltageV EBO 3 Collector currentI C 35mA Base currentI B 10 Total power dissipation T S = 107 °C P tot 280mW Junction temperatureT j 150°C Storage temperatureT stg -65 ... 150 Thermal Resistance Junction - soldering point 1) R thJS ≤ 155 K/W 1 For calculation of R thJA please refer to Application Note AN077 (Thermal Resistance Calculation)