The EDA4L2043P40M85R from ECHO Microwave is a Band Pass Filter with Frequency 2.02 to 2.06 GHz, Insertion Loss 6.5 dB, Rejection 20 to 85 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4L2043P40M85R can be seen below.