The EDA4E2600P20D40 from ECHO Microwave is a Band Pass Filter with Frequency 2.59 to 2.61 GHz, Insertion Loss 2 dB, Rejection 40 dB @ DC to 2400 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4E2600P20D40 can be seen below.