The EGN21C020MK from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 2.14 GHz, Power 40.5 dBm, Power(W) 11.22 W, Saturated Power 42.5 to 43.5 dBm, Power Gain (Gp) 18 to 19 dB. Tags: Flanged. More details for EGN21C020MK can be seen below.