View mrf839fr datasheet:

MOTOROLA Order this document SEMICONDUCTOR TECHNICAL DATA by MRF839F/D The RF Line NPN Silicon MRF839F RF Power Transistors . . . designed for 12.5 Volt UHF large–signal, common–emitter amplifier applications in industrial and commercial FM equipment operating in the range of 806–960 MHz. • Specified 12.5 V, 870 MHz Characteristics 3.0 W, 806–960 MHz Output Power = 3.0 Watts RF POWER Power Gain = 8.0 dB Min TRANSISTORS COMMON–EMITTER Efficiency = 55% Min NPN SILICON • 100% Tested for Load Mismatch at Rated Input Power and 15.5 V • Series Equivalent Large–Signal Characterization • Circuit board photomaster available upon request by contacting RF Tactical Marketing in Phoenix, AZ. MAXIMUM RATINGS Rating Symbol Value Unit Collector–Emitter Voltage VCEO 16 Vdc Collect