The SiMF16R5/1-7D3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 16.1 to 16.9 GHz, Center Frequency 16.5 GHz, Insertion Loss 3.5 dB, Rejection 30 dB @15.25GHz&17.7GHz, 40 dB @15GHz&17.9GHz, 50 dB @DC~14.75GHz, 40 dB @17.9~29GHz, Upper Rejection 30 to 40 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF16R5/1-7D3 can be seen below.