The SGK5872-20A from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 5.85 to 7.2 GHz, Power 41.5 to 43 dBm, Power(W) 14.13 to 19.95 W, Gain 11 to 13 dB, Power Added Effeciency 0.41. Tags: Surface Mount. More details for SGK5872-20A can be seen below.