The EDA4H3493P40P45 from ECHO Microwave is a Band Pass Filter with Frequency 3.47 to 3.51 GHz, Insertion Loss 8 dB, Rejection 40 to 86 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4H3493P40P45 can be seen below.