The CRF-10A-250 SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 5 to 500 MHz, Frequency Sensitivity ±0.5 dB, Coupling 10 dB, Coupling Variation ±1 dB, Power 1 W. Tags: Surface Mount. More details for CRF-10A-250 SQ can be seen below.