The LFCN-900D-1 from Mini Circuits is a Space Qualified RF Filter with Frequency DC to 850 MHz, Cut Off Frequency 1075 MHz, Stop Band Frequency 1275 to 5100 MHz, Power 10 W, Insertion Loss 1.3 dB. Tags: Surface Mount. More details for LFCN-900D-1 can be seen below.