The CSDZ-20H-1.6G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 1.35 to 1.85 GHz, Frequency Sensitivity ±0.4 dB, Coupling 20 dB, Coupling Variation ±0.6 dB, Power 200 W. Tags: Surface Mount. More details for CSDZ-20H-1.6G SQ can be seen below.