The FLM1213-4F from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 12.7 to 13.2 GHz, Power 35.5 to 36 dBm, Power(W) 3.55 to 3.98 W, P1dB 35.5 to 36 dBm, Power Gain (Gp) 5.5 to 6.5 dB. Tags: Flanged. More details for FLM1213-4F can be seen below.