The NJG1813KG1 from Nisshinbo Micro Devices Inc. is a RF Switch with Frequency 0.05 to 3 GHz, Insertion Loss 0.45 to 0.68 dB, Isolation 26 to 30 dB, P1dB 30 dBm, P1dB 1 W. Tags: Surface Mount, Solid State. More details for NJG1813KG1 can be seen below.