The AM2000B1352 from Anatech Electronics is a Band Pass Filter with Frequency 1.99 to 2.01 GHz, Bandwidth 20 MHz, Center Frequency 2000 MHz, Insertion Loss 4 dB, Upper Rejection 65 dBc @ 2000 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM2000B1352 can be seen below.