The BFY193C (ES) from Infineon Technologies is a Space Qualified RF Transistor with Frequency 6.5 to 8 GHz, Gain 8 to 9 dB(Transducer Gain), Power Gain (Gp) 12.5 to 13.5 dB, Noise Figure 2.3 to 2.9 dB, Supply Voltage 1 V(Base-Emitter forward voltage). More details for BFY193C (ES) can be seen below.