The EDA4E2250P50D40 from ECHO Microwave is a Band Pass Filter with Frequency 2.23 to 2.28 GHz, Insertion Loss 2 dB, Rejection 60 dB @ DC to 2000MHz, Return Loss 13 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4E2250P50D40 can be seen below.