The NJG1804K64 from Nisshinbo Micro Devices Inc. is a RF Switch with Frequency 0.05 to 6 GHz, Insertion Loss 0.50 to 0.80 dB, Isolation 24 to 30 dB, P1dB 29 dBm, P1dB 0.79 W. Tags: Surface Mount, Solid State. More details for NJG1804K64 can be seen below.