The SiMS6R5/3-9D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 5 to 8 GHz, Center Frequency 6.5 GHz, Insertion Loss 0.8 dB, Rejection 30 dB @3.6GHz&9.1GHz, 40 dB @2.5GHz&9.3GHz, 55 dB @DC~1.5GHz, 55 dB @10~17GHz, Upper Rejection 30 to 55 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS6R5/3-9D2 can be seen below.