The EDA4C1618P16C35 from ECHO Microwave is a Band Pass Filter with Frequency 1.61 to 1.63 GHz, Insertion Loss 1.5 dB, Rejection 35 to 40 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4C1618P16C35 can be seen below.