The 8C1642D5-35-CD-SFF from Quantic PMI (Planar Monolithics) is a Band Pass Filter with Frequency 1.63 to 1.66 GHz, Bandwidth 35 MHz, Center Frequency 1642.5 MHz, Insertion Loss 1.5 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for 8C1642D5-35-CD-SFF can be seen below.