The RCF-3625.000-450000-3225-W-T from Raltron is a Band Pass Filter with Frequency 3.4 to 3.85 GHz, Insertion Loss 1.2 to 3.5 dB, Rejection 15 to 38 dB / 20 to 40 dB, Upper Rejection 20 to 40 dB, Lower Rejection 15 to 38 dB. Tags: Surface Mount, Ceramic Filter. More details for RCF-3625.000-450000-3225-W-T can be seen below.