The CSDZ-10SH-2.5G SQ from Crane Aerospace & Electronics is a Directional Coupler with Frequency 2300 to 2700 MHz, Coupling 10.1 dB, Coupling Variation ±0.5 dB, Frequency Sensitivity ±0.15 dB, Directivity 22 dB. Tags: Surface Mount. More details for CSDZ-10SH-2.5G SQ can be seen below.