The SiMF7R25/2R5-7D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 6 to 8.5 GHz, Center Frequency 7.25 GHz, Insertion Loss 1.5 dB, Rejection 30 dB @5.15GHz&9.65GHz, 40 dB @4.8GHz&10.1GHz, 60 dB @DC~3.8GHz, 60 dB @12~17GHz, Upper Rejection 30 to 60 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF7R25/2R5-7D1 can be seen below.