The DA4H2475P40F70 from ECHO Microwave is a Band Pass Filter with Frequency 2.46 to 2.5 GHz, Insertion Loss 3 dB, Rejection 70 dB @ 2705 to 2745MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for DA4H2475P40F70 can be seen below.