The SiMS10R5/2-10D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 9.5 to 11.5 GHz, Center Frequency 10.5 GHz, Insertion Loss 2.5 dB, Rejection 30 dB @8.9GHz&12.2GHz, 40 dB @8.7GHz&12.3GHz, 60 dB @DC~8GHz, 55 dB @13~25GHz, Upper Rejection 30 to 55 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS10R5/2-10D2 can be seen below.