SMC (''SubMiniature version C'') connectors are coaxial
RF connector
A coaxial RF connector (radio frequency connector) is an electrical connector designed to work at radio frequencies in the multi-megahertz range.
RF connectors are typically used with coaxial cables and are designed to maintain the shielding t ...
s developed in the 1960s. The interface specifications for the SMC and many other connectors are referenced in MIL-STD-348.
They use a
#10-32 UNF threaded interface (screw type). They offer electrical performance from DC to 10 GHz. Male (a.k.a. plug) SMC connectors have a socket for the center contact, and Female (a.k.a. jack) SMC connectors have a pin for the center contact. SMC jack connectors have an external thread while SMC plug connectors have the mating hex nut. Available in 50-Ohm and 75-Ohm characteristic impedance, they provide an interconnect means for small form factor coaxial cables (e.g. 50-Ohm
RG-174, 75-Ohm
RG-179) and printed circuit boards where small footprint is important.
The term Subvis connector appears to be European usage; the connectors appear to be electrically and mechanically equivalent to SMC.
Discussion of SMC/Subvis equivalence
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See also
*SMA connector
SMA (''SubMiniature version A'') connectors are semi-precision coaxial RF connectors developed in the 1960s as a minimal connector interface for coaxial cable with a screw-type coupling mechanism. The connector has a 50 Ω impedance. SMA ...
, SMB connector
SMB (''SubMiniature version B'') connectors are coaxial RF connectors developed in the 1960s. SMB connectors are smaller than SMA connectors.
They feature a snap-on coupling and are available in either 50 Ω or 75 Ω impedance. They of ...
*BNC connector
The BNC connector (initialism of "Bayonet Neill–Concelman") is a miniature quick connect/disconnect radio frequency connector used for coaxial cable. It is designed to maintain the same characteristic impedance of the cable, with 50 ohm and ...
, TNC connector
The TNC connector (acronym of "Threaded Neill–Concelman") is a threaded version of the BNC connector.
Description
The interface specifications for the TNC and many other connectors are referenced in MIL-STD-348. The connector has a 50 Ω impe ...
, N connector
The N connector (also, type-N connector) is a threaded, weatherproof, medium-size RF connector used to join coaxial cables. It was one of the first connectors capable of carrying microwave-frequency signals, and was invented in the 1940s by Pau ...
References
RF connectors
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