NPN Silicon RF Transistor (For low-noise, high-gain broadband amplifiers at collector currents from 1mA to 20mA.) 2 CHANNEL, UHF BAND, Si, NPN, RF SMALL SIGNAL TRANSISTOR NPN Silicon RF Transistor (For low-noise/ high-gain broadband amplifiers at collector currents from 1mA to 20mA.) From old datasheet system