The SG26F30S-D from Sumitomo Electric Device Innovations is a RF Transistor with Frequency DC to 2.7 GHz, Power 43 dBm, Power(W) 19.95 W, Saturated Power 45 to 46 dBm, Power Gain (Gp) 17.5 to 18.5 dB. Tags: Surface Mount. More details for SG26F30S-D can be seen below.