The FSX027X from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 8 GHz, Power 23.5 to 24.5 dBm, Power(W) 0.22 to 0.28 W, P1dB 23.5 to 24.5 dBm, Power Gain (Gp) 6.5 to 14 dB. Tags: Chip. More details for FSX027X can be seen below.