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BF 517 Oct-26-19991 NPN Silicon RF Transistor For amplifier and oscillator applications in TV-tuners 1 2 3 VPS05161 TypeMarkingPin ConfigurationPackage BF 517LRs1 = B2 = E3 = CSOT-23 Maximum Ratings Parameter SymbolUnitValue Collector-emitter voltage15V CEO V Collector-base voltageV CBO 20 Emitter-base voltage2.5V EBO 25I C Collector currentmA Peak collector current, f 10 MHz I CM 50 Total power dissipation, T S 55 °C F) P tot 280mW Junction temperatureT j 150°C Ambient temperatureT A -65 ... 150 Storage temperatureT stg -65 ... 150 Thermal Resistance Junction - soldering point R thJS 340 K/W 1 T S is measured on the collector lead at the soldering point to the pcb