The SGK5254-30A-R from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 5.2 to 5.4 GHz, Power 44 to 45.5 dBm, Power(W) 25.12 to 35.48 W, Gain 15 to 16.5 dB, Power Added Effeciency 0.49. Tags: Flanged. More details for SGK5254-30A-R can be seen below.