The EDA4F1800P240E50 from ECHO Microwave is a Band Pass Filter with Frequency 1.68 to 1.92 GHz, Insertion Loss 2.5 dB, Rejection 50 to 70 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F1800P240E50 can be seen below.