BNC Panel Mounting SocketTelegartner 50 and 75 Straight BNC Solder Jacks. From Telegartner, a range 50 and 75 BNC straight cable mount jacks. The solder termination jacks have gold plated beryllium copper contacts and a PTFE insulator. Featuring a simple bayonet coupling mechanism the BNC jacks can be used up to 4 GHz. Requiring only a quarter turn to connect and disconnect this connection method makes the BNC jack one of the most commonly used RF connectors around. Features and Benefits. Bayonet coupling Solder termination Up to 4 GHz. Applications. Signal Data Video transmission