Circular connectors usually have a plastic or metal case surrounding a contact that is embedded in an insulating material to maintain their alignment.These terminals are usually paired with cables, which make them particularly resistant to ambient interference.
How to distinguish circular connectors
In addition to distinguishing by the number of pins (usually three, six, or eight per terminal), circular connectors can also be distinguished by manufacturing specifications, dimensions, connection angles, and connection and disconnection modes.
Standard: Standard circular connectors are generally those designed to meet German or U.S. military standards.
DIN Spec (DeutschesInstitutfurNormung, National Standardization Agency) : DIN circular connectors conform to the German electrical standard.DIN standards include high frequency functions and signature features, such as protective metal cases and rounded terminals with notches.This structure ensures that they are paired with the right fit.
Mil-spec (Military specification) : Manufacturers design mil-Spec connectors based on best practices for military and aerospace applications.These rugged connectors are ideal for high impact use and are highly resistant to extreme environments.Some MIL connectors are actually sealed or airtight due to the strong epoxy seal around the terminals, and most MIL connectors are waterproof.
Micron or nano: Micro - and nano - micro circular connectors have smaller pin and socket diameters and narrower contacts.This structure helps to save surface space on the terminal surface and reduces the additional weight of the connector on the component.
Circular connector terminal options
As with most types of electrical connectors, circular connectors have multiple end - on types.The type of terminal you choose determines the nature of the connections between electrical contacts in each connector component.Options vary by cost, ease of connection and disconnection, and protection against tampering, wear, and environmental damage.
Insulation displacement: the prong in the plug penetrates or pushes away the insulation layer around the corresponding socket in the socket, contacting and forming an electrical connection.
Welding: The use of an intermediate metal with a low melting point that contacts the two contacts to create a permanent channel for the current between the elements.
Winding: The wire connected to the side of the connector socket is connected to another terminal.The wire is wound around the socket of the plug so that the exposed part contacts the socket.
Screws or lugs: External hardware is attached to threaded (screw) or unthreaded (lug) holes in a protective cover around each terminal to hold the connection in place.
Crimping: The contact cylinder is compressed around the conductor to complete the electrical connection.
According to the specific purpose of the connection, the circular electrical connectors have a variety of contact sizes and housing sizes, and can be measured in diameter.Sensors and other sophisticated, highly sensitive applications are ideal for smaller casing diameters;The larger shell diameter is more suitable for power transmission.
Advantages and disadvantages of circular connectors
Pros: Circular connectors are ideal for applications that require electrical connectors with more robust terminals.Their cylindrical shape makes them particularly resistant to mechanical turbulence and shock damage.
Faults: Circular surface area limits pin and jack arrangement on circular connector surface;Connectors with rectangular faces allow more contacts to be installed on a smaller surface area at larger and more evenly spaced intervals.