The FLM5359-45F from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 5.3 to 5.9 GHz, Power 46 to 46.5 dBm, Power(W) 39.81 to 44.67 W, P1dB 46 to 46.5 dBm, Power Gain (Gp) 7.5 to 8.5 dB. Tags: Flanged. More details for FLM5359-45F can be seen below.