The EDA3C1200P10J30 from ECHO Microwave is a Band Pass Filter with Frequency 1.2 to 1.21 GHz, Insertion Loss 5 dB, Rejection 30 dB @ 1168MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA3C1200P10J30 can be seen below.