The EDA3D5250P500F45 from ECHO Microwave is a Band Pass Filter with Frequency 5 to 5.5 GHz, Insertion Loss 3 dB, Rejection 45 dB @ 9000MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA3D5250P500F45 can be seen below.