The NJG1800NB2 from Nisshinbo Micro Devices Inc. is a RF Switch with Frequency 0.5 to 3 GHz, Insertion Loss 0.36 to 0.65 dB, Isolation 32 to 50 dB, P1dB 21 dBm, P1dB 0.12 W. Tags: Surface Mount, Solid State. More details for NJG1800NB2 can be seen below.