The CSBP-A940 from Mini Circuits is a Band Pass Filter with Frequency 880 MHz to 1 GHz, Bandwidth 120 MHz, Center Frequency 940 MHz, Insertion Loss 1.2 to 2 dB, Rejection 20 dB @ DC-800 and 1095-1840 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for CSBP-A940 can be seen below.