The EMA8H2437P50F20D from ECHO Microwave is a Band Pass Filter with Frequency 2.41 to 2.46 GHz, Insertion Loss 3 dB, Rejection 20 to 30 dB, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8H2437P50F20D can be seen below.