The EMA10L2200P40H70DL from ECHO Microwave is a Band Pass Filter with Frequency 2.18 to 2.22 GHz, Insertion Loss 4 dB, Rejection 70 dB @ 1500 to 2125MHz, Return Loss 16 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA10L2200P40H70DL can be seen below.