The CSBP-B1300-75 from Mini Circuits is a Band Pass Filter with Frequency 1.21 to 1.39 GHz, Bandwidth 180 MHz, Center Frequency 1300 MHz, Insertion Loss 1 to 2 dB, Rejection 20 dB @ DC-1080 and 1545-2500 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for CSBP-B1300-75 can be seen below.