The NJG1666MD7 from Nisshinbo Micro Devices Inc. is a RF Switch with Frequency 0.05 to 3 GHz, Insertion Loss 0.40 to 0.70 dB, Isolation 55 to 70 dB, P1dB 25 dBm, P1dB 0.31 W. Tags: Surface Mount, Solid State. More details for NJG1666MD7 can be seen below.