The EDA4F1825P350D50 from ECHO Microwave is a Band Pass Filter with Frequency 1.65 to 2 GHz, Insertion Loss 2 dB, Rejection 50 dB @ 1000MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F1825P350D50 can be seen below.