The EDA4E2950P85K40 from ECHO Microwave is a Band Pass Filter with Frequency 2.91 to 2.99 GHz, Insertion Loss 5.5 dB, Rejection 40 to 45 dB, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4E2950P85K40 can be seen below.