The DEA162450BT-1298A1 from TDK is a Band Pass Filter with Frequency 2.4 to 2.5 GHz, Bandwidth 100 MHz, Center Frequency 2.45 GHz, Insertion Loss 0.91 to 1.3 dB, Rejection 25 to 52 dB. Tags: Surface Mount. More details for DEA162450BT-1298A1 can be seen below.