The SF2921-61506 is a 2-hole flange mount SMA female connector designed for coplanar waveguide (CPW) and microstrip circuit board mounting. It operates with a characteristic impedance of 50 Ohms across a frequency range from DC to 26.5 GHz. The connector features a passivated stainless steel body, a PTFE insulator, and a gold-plated beryllium copper spring pin contact for reliable performance. This RoHS compliant connector is suitable for a wide range of PCB thicknesses from .005 to .373 inches, making it a versatile choice for high-frequency RF and microwave systems.