NTE333 & NTE334 Silicon NPN Transistors RF Power Output Description: The NTE333 & NTE334 are designed for power amplifier applications in industrial, commercial and amateur radio equipment to 30MHz. Features: D Specified 12.5 Volt, 30MHz Characteristics− Output Power = 60 Watts Minimum Gain = 13dB Efficiency = 55% Absolute Maximum Ratings: Collector−Emitter Voltage, VCEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Collector−Emitter Voltage, VCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V Emitter−Base Voltage, VEBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V Collector Current−Continuous, IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15A Total Device Dissipation (TC = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175W Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0W/°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C Thermal Resistance, Junction−to−Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0°C/W Note 1. NTE334 is a discontinued device and no longer available. 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−Emitter Breakdown Voltage V(BR)CES IC = 50mA, VBE = 0 36 − − V Emitter−Base Breakdown Voltage V(BR)EBO IE = 10mA, IC = 0 4.0 − − V hFE IC = 5.0A, VCE = 5.0V 10 − 150 Output Capacitance Cob VCB = 12.5Vdc, IE = 0, f = 1.0MHz − − 250 pF Common−Emitter Amplifier Power Gain Gpe VCC = 12.5Vdc, Pout = 60W, f = 30MHz 13 − − dB η VCC = 12.5Vdc, Pout = 60W, f = 30MHz 55 − − % Series Equivalent Input Impedance Zin VCC = 12.5Vdc, Pout = 60W, f = 30MHz − − Ohms Series Equivalent Output Impedance Zout VCC = 12.5Vdc, Pout = 60W, f = 30MHz − 1.6 − j.844 1.7 − j.188 − Ohms ON Characteristics DC Current Gain Dynamic Characteristics Collector Efficiency Electrical Characteristics (Cont’d): (TC = +25°C unless otherwise specified). Parameter Symbol Test Conditions Min Typ Max Unit Parallel Equivalent Input Impedance Zin VCC = 12.5Vdc, Pout = 60W, f = 30MHz − 2.09/ 1030 − Ω/pF Parallel Equivalent Output Impedance Zout VCC = 12.5Vdc, Pout = 60W, f = 30MHz − 1.75/ 330 − Ω/pF Dynamic Characteristics (Cont’d) NTE333 .122 (3.1) Dia (2 Holes) .725 (18.42) E C B E .250 (6.35) .225 (5.72) .860 (21.84) .378 (9.56) .005 (0.15) .255 (6.5) .185 (4.7) .975 (24.77) .085 (2.14) NTE334 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)