The SiMS9R25/2R5-9D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 8 to 10.5 GHz, Center Frequency 9.25 GHz, Insertion Loss 1.5 dB, Rejection 30 dB @6.9GHz&11.85GHz, 40 dB @6.45GHz&12.05GHz, 60 dB @DC~4GHz, 50 dB @12.6~20GHz, Upper Rejection 30 to 50 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS9R25/2R5-9D1 can be seen below.