The EDA4F3850P100H60 from ECHO Microwave is a Band Pass Filter with Frequency 3.8 to 3.9 GHz, Insertion Loss 4 dB, Rejection 60 dB @ 4100MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F3850P100H60 can be seen below.