The 131-3711-201 is a RF/Coaxial Connector, SMA straight jack receptacle with gold plated beryllium copper contact, gold plated body. Mounted on PCB and solder termination, connects to the cable types RG58/U, RG178/U, RG316/U. This JOHNSON's connectors are high frequency end launch Connector is designed to attach directly to a high frequency coplanar waveguide (CPW) circuit board transmission line, although other lines such as micro-strip can be used with good results. These connectors can be used on high frequency PC board substrate layers as thin as 8 mils.