View bf414 datasheet:

BF 414 NPN Silicon RF Transistor BF 414 For low-noise, common base VHF and FM stages 2 3 1 Type Marking Ordering Code Pin Configuration Package1) 1 2 3 BF 414 – Q62702-F517 C B E TO-92 Maximum Ratings Parameter Symbol Values Unit Collector-emitter voltage VCE0 30 V Collector-base voltage VCB0 40 Emitter-base voltage VEB0 4 Collector current IC 25 mA Base current IB 3 Total power dissipation, TA ? 45 ?C Ptot 300 mW Junction temperature Tj 150 ?C Storage temperature range Tstg – 55 … + 150 Thermal Resistance Junction - ambient Rth JA ? 350 K/W 1) For detailed information see chapter Package Outlines. Semiconductor Group 1 BF 414 Electrical Characteristics at TA = 25 ?C, unless otherwise specified. Parameter Symbol Values Unit min. typ. max. DC Characteristics