The SiMF7R25/4R5-9D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 5 to 9.5 GHz, Center Frequency 7.25 GHz, Insertion Loss 2 dB, Rejection 30 dB @3.9GHz&10.8GHz, 40 dB @3.2GHz&11.2GHz, 60 dB @DC~1.5GHz, 40 dB @11.2~19GHz dB, Upper Rejection 30 to 60 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF7R25/4R5-9D1 can be seen below.