The CBF-11A-500 SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 10 MHz to 1 GHz, Frequency Sensitivity ±1 dB, Coupling 11 dB, Coupling Variation ±1 dB, Power 1 W. Tags: Surface Mount. More details for CBF-11A-500 SQ can be seen below.