The FLM1011-20F from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 10.7 to 11.7 GHz, Power 42 to 43 dBm, Power(W) 15.85 to 19.95 W, P1dB 42 to 43 dBm, Power Gain (Gp) 6 to 7 dB. Tags: Flanged. More details for FLM1011-20F can be seen below.