BUY 2SC1746 https://www.utsource.net/itm/p/1883006.html

The 2SC1746 is a silicon NPN epitaxial planar transistor manufactured by NEC. It is designed for use in high-frequency, low-noise amplifier applications. Features: Low noise figure High gain High frequency operation High power output Low collector-emitter saturation voltage Applications: High-frequency, low-noise amplifier RF amplifier IF amplifier Oscillator Mixer (For reference only)