The SiMS10R5/1R8-10D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 9.7 to 11.2 GHz, Center Frequency 10.45 GHz, Insertion Loss 2.5 dB, Rejection 30 dB @9.2GHz&11.9GHz, 40 dB @9GHz&12.1GHz, 55 dB @DC~9GHz, 45 dB @13~26GHz, Upper Rejection 30 to 45 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS10R5/1R8-10D2 can be seen below.