The DEA142450BT-3024A1 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 0.97 to 1.1 dB, Rejection 9 to 24 dB. Tags: Surface Mount. More details for DEA142450BT-3024A1 can be seen below.