The EMA6F2437P50F25B from ECHO Microwave is a Band Pass Filter with Frequency 2.41 to 2.46 GHz, Insertion Loss 3 dB, Rejection 25 to 35 dB, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6F2437P50F25B can be seen below.