NTE345 Silicon NPN Transistor RF Power Amp, Driver Description: The NTE345 is a silicon NPN transistor in a T72H type package designed primarily for use in 13.6V large–signal amplifier applications in industrial and commercial FM equipment operating to 175MHz. This device is ideally suited for marine radio applications. Features: D Specified 13.6V, 160MHz Characteristics: Output Power = 30W Minimum Gain = 9dB Efficiency = 60% Absolute Maximum Ratings: Collector–Emitter Voltage, VCEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Collector–Base Voltage, VCBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V Emitter–Base Voltage, VEBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V Continuous Collector Current, IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A Total Device Dissipation (TC = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65W Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.37W/°C Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +200°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +200°C Electrical Characteristics: (TC = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit OFF Characteristics Collector–Emitter Breakdown Voltage V(BR)CEO IC = 100mA, IB = 0 18 – – V Collector–Base Breakdown Voltage V(BR)CBO IC = 15mA, IE = 0 36 – – V Emitter–Base Breakdown Voltage V(BR)EBO IE = 5mA, IC = 0 4 – – V ON Characteristics DC Current Gain hFE IC = 1A, VCE = 5V 5 – – Cob VCB = 15V, IE = 0, f = 0.1 to 1MHz – 110 130 pF Dynamic Characteristics Output Capacitance Functional Tests (VCC = 13.6V unless otherwise specified) Common–Emitter Amplifier Power Gain Collector Efficiency GPE Pout = 30W, f = 160MHz 9 10 – dB η Pout = 30W, f = 160MHz 60 – – % 1.040 (26.4) Max .520 (13.2) C .230 (5.84) E E B .100 (2.54) .385 (9.8) Dia .005 (0.15) .168 (4.27) 8–32–NC–3A Wrench Flat .750 (19.05)