The SGN21C320I2D from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 2.14 GHz, Power 50 dBm, Power(W) 100 W, Saturated Power 54.2 to 55 dBm, Power Gain (Gp) 16.5 to 17.5 dB. Tags: Flanged. More details for SGN21C320I2D can be seen below.