The 2450BP39F100A from Johanson Technology is a Band Pass Filter with Frequency 2.4 to 2.5 GHz, Bandwidth 100 MHz, Insertion Loss 1.65 dB, Rejection 45 dB, Power 0.5 W. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for 2450BP39F100A can be seen below.