The EDA4E2150P100H55 from ECHO Microwave is a Band Pass Filter with Frequency 2.1 to 2.2 GHz, Insertion Loss 4 dB, Rejection 55 dB @ 2400MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4E2150P100H55 can be seen below.