The SGN2729-250H-R from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 2.7 to 2.9 GHz, Power 53.97 to 55.05 dBm, Power(W) 250 to 320 W, Power Gain (Gp) 13 to 14 dB, VSWR 10.00:1. Tags: Flanged. More details for SGN2729-250H-R can be seen below.