The EMA4H4600P40H40D from ECHO Microwave is a Band Pass Filter with Frequency 4.58 to 4.62 GHz, Insertion Loss 4 dB, Rejection 40 dB @ 4730 to 4870 MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA4H4600P40H40D can be seen below.