The NJG1647HD3 from Nisshinbo Micro Devices Inc. is a RF Switch with Frequency 0.2 to 3 GHz, Insertion Loss 0.25 to 0.50 dB, Isolation 17 to 25 dB, P1dB 36 dBm, P1dB 3.98 W. Tags: Surface Mount, Solid State. More details for NJG1647HD3 can be seen below.