The QHDZ-2Z-1.9G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 1.7 to 2 GHz, Coupling 3 dB, Power 25 W, Amplitude Balance ±0.3 dB, Phase Balance ±3 Degrees. Tags: Surface Mount. More details for QHDZ-2Z-1.9G SQ can be seen below.