The LFTC-4000 from Mini Circuits is a Space Qualified RF Filter with Frequency DC to 4 GHz, Cut Off Frequency 5325 MHz, Stop Band Frequency 7250 to 9500 MHz, Power 10 W, Insertion Loss 0.06 to 0.79 dB. Tags: Surface Mount. More details for LFTC-4000 can be seen below.