The CBP-1773AF+ from Mini Circuits is a Band Pass Filter with Frequency 1678 to 1868 MHz, Center Frequency 1773 MHz, Insertion Loss 3.0 to 3.5 dB, Power 5 W, VSWR 1.78:1, 2.00:1. Tags: Surface Mount, Ceramic Filter. More details for CBP-1773AF+ can be seen below.