The EGN26C020MK from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 2.6 GHz, Power 42 dBm, Power(W) 15.85 W, Saturated Power 42.5 to 43.5 dBm, Power Gain (Gp) 17 to 18 dB. Tags: Flanged. More details for EGN26C020MK can be seen below.