The FHC40LG from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 4 GHz, Gain 14 to 15.5 dB, Noise Figure 0.3 to 0.4 dB, Supply Voltage 2 V, Drain Current 10 to 85 mA. Tags: Surface Mount. More details for FHC40LG can be seen below.