From old datasheet system NPN Silicon RF Transistor (For low-noise/ high-gain broadband amplifier at collector currents from 0.5 to 12 mA) NPN Silicon RF Transistor (For low-noise, high-gain broadband amplifier at collector currents from 0.5 to 12 mA) 2 CHANNEL, UHF BAND, Si, NPN, RF SMALL SIGNAL TRANSISTOR