The DEA142450BT-3028A1 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 0.9 to 1.25 dB, Rejection 17 to 38 dB. Tags: Surface Mount. More details for DEA142450BT-3028A1 can be seen below.