The DEA202450BT-2175A1-H 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 1.43 to 2 dB, Rejection 28 to 41.7 dB. Tags: Surface Mount. More details for DEA202450BT-2175A1-H can be seen below.