The EDA4F2680P26N50 from ECHO Microwave is a Band Pass Filter with Frequency 2.67 to 2.69 GHz, Insertion Loss 7 dB, Rejection 50 dB @ 2610MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F2680P26N50 can be seen below.