The EDA4L2870P10T40R from ECHO Microwave is a Band Pass Filter with Frequency 2.87 to 2.88 GHz, Insertion Loss 10 dB, Rejection 40 to 50 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4L2870P10T40R can be seen below.