The EMA10L1986P5F60D from ECHO Microwave is a Band Pass Filter with Frequency 1.98 to 1.99 GHz, Insertion Loss 3 dB, Rejection 60 dB @ 1956MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA10L1986P5F60D can be seen below.