The NJG1665MD7 from Nisshinbo Micro Devices Inc. is a RF Switch with Frequency 0.05 to 3 GHz, Insertion Loss 0.40 to 0.80 dB, Isolation 18 to 29 dB, P1dB 29 dBm, P1dB 0.79 W. Tags: Surface Mount, Solid State. More details for NJG1665MD7 can be seen below.