The HFCN-1810 from Mini Circuits is a Space Qualified RF Filter with Frequency 1.95 to 4.75 GHz, Cut Off Frequency 1810 MHz, Stop Band Frequency 1100 to 1480 MHz, Power 7 W, Insertion Loss 1.3 to 2 dB. Tags: Surface Mount. More details for HFCN-1810 can be seen below.