The EDA4H1751P41J50 from ECHO Microwave is a Band Pass Filter with Frequency 1.73 to 1.77 GHz, Insertion Loss 5 dB, Rejection 50 to 80 dB, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4H1751P41J50 can be seen below.