The CHA4253a98F from United Monolithic Semiconductors is a RF Amplifier with Frequency 17 to 24 GHz, Gain 26 dB, Output Power 24.5 to 25 dBm, Output Power 0.28 to 0.32 W, P1dB 24.5 dBm. Tags: Power Amplifier. More details for CHA4253a98F can be seen below.