SC series is a kind of high-power connection mechanism, it's developed and produced according to MIL-C-39012. With characteristics of great shake resistance, high power and high reliability. It is used in rf systems with frequency lower than 6GH,  which can be interchangeable with international series connectors.  Widely used in aviation, aerospace, radar microwave communication and other fields.

SMC is a threaded deformation SMB connector, meanwhile, it is a typical reverse polarity connector: the inner conductor connected to the screw socket is the socket. The internal size is the same as SMB, with characteristics of small volume and high reliability.