The EDA4H1956P20H70 from ECHO Microwave is a Band Pass Filter with Frequency 1.95 to 1.97 GHz, Insertion Loss 4 dB, Rejection 70 dB @ 1826MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4H1956P20H70 can be seen below.