BF 771 NPN Silicon RF Transistor • For modulators and amplifiers in TV and VCR tuners ESD: Electrostatic discharge sensitive device, observe handling precaution! Type Marking Ordering Code Pin Configuration Package BF 771 SOT-23 RBs Q62702-F1225 1=B 2=E 3=C Maximum Ratings Parameter Symbol Collector-emitter voltage VCEO 12 Collector-emitter voltage VCES 20 Collector-base voltage VCBO 20 Emitter-base voltage VEBO 2 Collector current IC 80 Base current IB 10 Total power dissipation Ptot TS ≤ 69 °C Values Unit V mA mW 580 Junction temperature Tj Ambient temperature TA - 65 ... + 150 Storage temperature Tstg - 65 ... + 150 150 °C Thermal Resistance Junction - soldering point 1) RthJS ≤ 140 K/W 1) TS is measured on the collector lead at the soldering point to the pcb. Semiconductor Group 1 Dec-11-1996 BF 771 Electrical Characteristics at TA = 25°C, unless otherwise specified. Parameter Symbol Values min. typ. Unit max. DC Characteristics Collector-emitter breakdown voltage V(BR)CEO IC = 1 mA, IB = 0 Collector-emitter cutoff current 12 100 nA - - 100 IEBO µA - - 1 hFE IC = 30 mA, VCE = 8 V Semiconductor Group - ICBO VEB = 1 V, IC = 0 DC current gain µA - VCB = 10 V, IE = 0 Emitter-base cutoff current - ICES VCE = 20 V, VBE = 0 Collector-base cutoff current V 50 2 100 200 Dec-11-1996 BF 771 Electrical Characteristics at TA = 25°C, unless otherwise specified. Parameter Symbol Values min. typ. Unit max. AC Characteristics Transition frequency fT IC = 50 mA, VCE = 8 V, f = 500 MHz Collector-base capacitance 6 pF - 0.68 1 - 0.24 - - 1.8 - Cce VCE = 10 V, f = 1 MHz Emitter-base capacitance 8 Ccb VCB = 10 V, f = 1 MHz Collector-emitter capacitance GHz Ceb VEB = 0.5 V, f = 1 MHz F Noise figure dB IC = 10 mA, VCE = 8 V, ZS = ZSopt f = 900 MHz - 1.3 - f = 1.8 GHz - 2.1 - f = 900 MHz - 14.5 - f = 1.8 GHz - 9 - f = 900 MHz - 12.5 - f = 1.8 GHz - 7 - Power gain 2) Gma IC = 30 mA, VCE = 8 V, ZS = ZSopt ZL = ZLopt Transducer gain |S21e|2 IC = 30 mA, VCE = 8 V, ZS =ZL= 50 Ω 2) Gma = |S21/S12| (k-(k2-1)1/2) Semiconductor Group 3 Dec-11-1996