The 7C1640-10-CD-SFF from Quantic PMI (Planar Monolithics) is a Band Pass Filter with Frequency 1.64 to 1.65 GHz, Bandwidth 10 MHz, Center Frequency 1640 MHz, Insertion Loss 4.7 dB, Rejection 60dB @ 1620 and 1660MHz. Tags: Module with Connectors, Cavity Filter. More details for 7C1640-10-CD-SFF can be seen below.