The EDA4G1640P80E53 from ECHO Microwave is a Band Pass Filter with Frequency 1.6 to 1.68 GHz, Insertion Loss 2.5 dB, Rejection 53 dB @ 1520MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4G1640P80E53 can be seen below.