The BPF1200MS500A from Sangshin is a Band Pass Filter with Frequency 950 to 1450 MHz, Bandwidth 250 MHz, Center Frequency 1200 MHz, Insertion Loss 2.5 dB, Upper Rejection 10 to 40 dB. Tags: Surface Mount, Lumped Component Filter. More details for BPF1200MS500A can be seen below.