The EDA3E1800P250C55 from ECHO Microwave is a Band Pass Filter with Frequency 1.68 to 1.93 GHz, Insertion Loss 1.5 dB, Rejection 55 dB @ 2600MHz, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA3E1800P250C55 can be seen below.