The FLM4450-45F from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 4.4 to 5.0 GHz, Power 46 to 46.5 dBm, Power(W) 39.81 to 44.67 W, P1dB 46 to 46.5 dBm, Power Gain (Gp) 9 to 10 dB. Tags: Flanged. More details for FLM4450-45F can be seen below.