The DEA202450BT-7089C3 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 2.95 to 3.7 dB, Rejection 20 to 55 dB. Tags: Surface Mount. More details for DEA202450BT-7089C3 can be seen below.