The LFCN-3400D-1 from Mini Circuits is a Space Qualified RF Filter with Frequency DC to 3.4 GHz, Cut Off Frequency 3950 MHz, Stop Band Frequency 4300 to 8300 MHz, Power 8 W, Insertion Loss 0.01 to 1.5 dB. Tags: Surface Mount. More details for LFCN-3400D-1 can be seen below.