BNCTO SMB RF coaxial adapter50 Ohm or 75 Ohm impedance BNC to SMB adapters are part of a comprehensive adapter product line from our company. Our BNC to SMB adapter connectors are built to strict RF and microwave industry specifications. BNC to SMB adapters are built in jack to female, jack to male, plug to female or plug to male gender designs. Excellent technical support and customer service are on hand to assist our customers.Body                                      BRASS or stainless steel   Contact                                 Beryllium-copper  Insulator                                PTFE  Plating                                  Body: Nickel or gold plated Welcome to inquiry!