NTE15 Silicon NPN Transistor VHF Amp, Mixer, Oscillator, UHF OSC Features: D High Transition Frequency: fT = 1.1GHz D Low Base Resistance and High Gain D Excellent Noise Characteristics Applications: D VHF Mixers and Oscillators D UHF Oscillators Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Collector–Base Voltage, VCBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Collector–Emitter Voltage, VCEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19V Emitter–Base Voltage, VEBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V Collector Current, IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Collector Dissipation, PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mW Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Electrical Characteristics: (TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Collector–Emitter Breakdown Voltage V(BR)CEO IC = 1mA 19 – – V Collector–Base Breakdown Voltage V(BR)CBO IC = 50µA 30 – – V Emitter–Base Breakdown Voltage V(BR)EBO IE = 50µA 5 – – V Collector Cutoff Current ICBO VCB = 20V – – 0.5 µA Emitter Cutoff Current IEBO VEB = 3V – – 0.5 µA DC Current Gain hFE VCE = 10V, IC = 5mA 39 – – – VCE(sat) IC = 10mA, IB = 1mA – 0.1 – V Collector Saturation Voltage Transition Frequency fT VCE = 5V, IE = 10mA – 600 1100 MHz Output Capacitance Cob VCB = 10V, f = 1MHz – 1.2 1.5 pF Collector–Base Time Constant Cdbb IC = 10mA, VCB = 5V, f = 31.8MHz – 10 15 pS .102 (2.6) .280 (7.11) E .100 (2.54) .051 (1.29) C B .185 (4.7) .138 (3.5) .022 (0.55)