The CBP-1645J+ from Mini Circuits is a Band Pass Filter with Frequency 1622 to 1668 MHz, Center Frequency 1645 MHz, Insertion Loss 1.3 to 2.0 dB, Power 8 W, VSWR 1.50:1, 2.32:1. Tags: Surface Mount, Ceramic Filter. More details for CBP-1645J+ can be seen below.