The DEA202450BT-7077A1 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 3.5 to 3.8 dB, Rejection 17 to 40 dB. Tags: Surface Mount. More details for DEA202450BT-7077A1 can be seen below.