The FLL120MK from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 2.3 GHz, Power 39.5 to 40 dBm, Power(W) 8.91 to 10 W, P1dB 39.5 to 40 dBm, Power Gain (Gp) 9 to 10 dB. Tags: Flanged. More details for FLL120MK can be seen below.