The AM1950B1646 from Anatech Electronics is a Band Pass Filter with Frequency 1.92 to 1.98 GHz, Bandwidth 60 MHz, Center Frequency 1950 MHz, Insertion Loss -3.7 dB, Rejection -40 to -20 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for AM1950B1646 can be seen below.