NPN Silicon RF Transistor (For low noise/ low-power amplifiers in mobile communication systems) NPN Silicon RF Transistor (For low noise, low-power amplifiers in mobile communication systems) NPN硅射频晶体管(对于低噪音,在移动通信系统的低功耗放大器 NPN Silicon RF Transistor (For low noise low-power amplifiers in mobile communication systems) From old datasheet system