The BPJC-252R+ from Mini Circuits is a Band Pass Filter with Frequency 2400 to 2500 MHz, Center Frequency 2450 MHz, Insertion Loss 2.3 to 3.2 dB, Upper Rejection 20 to 43 dB, Lower Rejection 20 to 46 dB. Tags: Surface Mount, Ceramic Filter. More details for BPJC-252R+ can be seen below.