The EDA4H2504P130G30 from ECHO Microwave is a Band Pass Filter with Frequency 2.44 to 2.57 GHz, Insertion Loss 3.5 dB, Rejection 30 to 60 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4H2504P130G30 can be seen below.