In the case of insulated crimp connectors, the crimped area lies under an insulating sleeve through which the pressing force acts. During crimping, the extended end of this insulating sleeve is simultaneously pressed around the insulated area of the cable, creating strain relief. The insulating sleeve of insulated connectors has a color that indicates the wire's cross-section area. Colors are standardized according to DIN 46245: This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. a b David Brearley (9 October 2015). "Would you trust your life to a 50-year old connector design?". Connector Tips . Retrieved 27 June 2019. Molex connectors are designed to carry a lot of current: up to 11A per pin. For projects where a lot of power may be needed--a CNC machine, for instance, or a 3D printer- a very common method for powering the project is to use a desktop PC power supply and connecting the various system circuits through Molex connectors. a b Horowitz, Paul; Hill, Winfield (1989). The Art of Electronics (2nded.). Cambridge University Press. ISBN 0-521-37095-7.

At SparkFun, we frequently refer to "2.0mm JST Connectors". This is yet another generalization of a specific product- JST is a Japanese company which makes high-quality connectors, and our 2.0mm JST connector of choice is the PH series two-position polarized connector. Mroczkowski, Dr. Robert S. (15 October 2004). "A Perspective on Connector Reliability" (PDF). IEEE. connNtext . Retrieved 1 July 2019. Grounding screws are often color-coded green and, when used on consumer electronics, often have a washer with gripping "teeth", to ensure better connections. a b c d e f Connectors – Technologies and Trends (PDF). ZVEI – German Electrical and Electronic Manufacturers’ Association. August 2016. Mroczkowski, Robert S. (1998). "Ch 1". Electrical Connector Handbook: Theory and Applications. McGraw Hill. ISBN 0-07-041401-7.

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Screw terminals are used extensively in building wiring for the distribution of electricity - connecting electrical outlets, luminaires and switches to the mains, and for directly connecting major appliances such as clothes dryers and ovens drawing in excess of 15 amperes. a b Reference Designations for Electrical and Electronics Parts and Equipment: ASME Y14.44-2008: Section 2.1.5.3 (2). ASME, Fairfield, NJ. 2008. Archived from the original on 2010-03-13 . Retrieved 2012-02-03. the stationary (more fixed) connector of a mating pair shall be designated J or X ... The movable (less fixed) connector of a mating pair shall be designated P Common polarity diagrams for AC adaptors with barrel plugs. Positive polarity (tip positive, sleeve 0V) is most common. Diagram courtesy Wikipedia user Three-quarter-ten.

PCB mount connectors soldered to a printed circuit board, providing a point for cable or wire attachment. [6] :56 (e.g. pin headers, screw terminals, board-to-board connectors) Evans, Bill (2011). Live sound fundamentals. Course Technology. pp. 24, 29. ISBN 978-1-4354-5494-1. While wires may be crimped, they should not be heavily tinned with solder prior to installation in a screw terminal, since the soft metal will cold flow, resulting in a loose connection and possible fire hazard. [ citation needed] Screw connectors sometimes come loose if not done up tightly enough at fitting time. Verifying adequate tightening torque requires calibrated installation tools and proper training. In the UK, all screw connectors on fixed mains installations are required to be accessible for servicing, for this reason. [ citation needed] Advantages and disadvantages [ edit ] Two types of screw terminals showing a significant development in design. Basic, with the wires held between the screw heads and the terminals (left) and with the wires held, reversely, between the metal clamping plates and the rear of the terminals (right). Twist-on wire connectors (e.g. wire nuts) – used in low-voltage power circuits for wires up to about 10AWG

Printed circuit board (PCB) mounted screw terminals let individual wires connect to a PCB through leads soldered to the board. Endres, Herbert (19 December 2011). "Gold or Tin versus Gold and Tin?". Molex . Retrieved 1 July 2019. RS supply a wide range of high quality components. They include heavy duty industrial connectors, power connectors, modular connectors, electrical connectors, electronic and data connectors. They are divided into the following categories: inline or cable connectors permanently attached to a cable, so it can be plugged into another terminal (either a stationary instrument or another cable) [5] The screw mechanism limits the minimum physical size of a terminal, making screw terminals less useful where large numbers of connections are required.

Robust power connection - It's important for the power pins to make connection before the data lines, to avoid trying to power the device over the data lines. All USB connectors are designed with this in mind. There is one consistency however; all antennas, cables or anything was being attached to a potential stationary object used an outer nut or inner thread design and all stationary devices used the outer thread design. This applies for all SparkFun products. All of our antennas are either SMA male or RP-SMA female. All of our boards are either SMA female or RP-SMA male. RP-SMA Connectors Polarity is the final aspect to consider; most often, the sleeve will be considered 0V and the tip will be a positive voltage relative to the sleeve. Many devices will have a small diagram indicating the polarity expected by the device; care should be taken to adhere to this, as an improper power supply may damage the device.

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Polarization - A USB connector can only nominally be inserted one way. It may be possible to force a connector in wrong, but that will result in damage to the device. a b Elliott, Brian S. (2007). "Chapter 9: Connectors". Electromechanical Devices & Components (2nded.). McGraw-Hill Professional. ISBN 978-0-07-147752-9. David, Larry (17 March 2012). "Engineering Definitions – 'Com' to 'Con' ". Electronic Engineering Dictionary Terms. Connector . Retrieved 30 June 2019. a b c Worley, Jon (31 July 2018). "Circular Connector Terminology Guide". NYK Component Solutions . Retrieved 2018-10-15.

Assembly of a screw connection requires some care in workmanship to ensure proper removal of insulation, containment of all wire strands, and the adequate tightening of the screw. If the wire diameter is small in relation to the size of the screw, the wire may be cut through by the over-tightening of the screw. This is less likely to occur when a wire is clamped between two plates by the action of a screw. Since wire strands may not be contained by the screw head in a basic screw terminal, stranded wires may be first crimped into a ferrule to prevent the bridging of terminals; this partly offsets the simplicity and economy of a "bare" wire termination. Splice or butt connectors (primarily insulation displacement connectors) that permanently join two lengths of wire or cable Really, you can ignore the gender descriptor. If you have a RP-SMA board or module, you need a RP-SMA antenna and so forth for SMA. Pretty simple, right?! Just make sure to match the antenna frequency with the your board. Ribbon Cable Interconnect Solutions" (PDF). TE Connectivity. April 2012. p.30 . Retrieved 1 July 2019. By its design the traditional failure mode in tin plated connections, fretting corrosion, is prevented . The wire may be wrapped directly under the head of a screw, may be held by a metal plate forced against the wire by a screw, or may be held by what is, in effect, a set screw in the side of a metal tube. The wire may be directly stripped of insulation and inserted under the head of a screw or into the terminal. Otherwise, it may be either inserted first into a ferrule, which is then inserted into the terminal, or else attached to a connecting lug, which is then fixed under the screw head.a b "Molex Connectors Explained, as used in Pinball". Marvin's Marvelous Mechanical Museum. 4 March 2005 . Retrieved 1 July 2019. The M12 connector, specified in IEC 61076-2-101, is a circular electrical plug/receptacle pair with 12mm OD mating threads, used in NMEA 2000, DeviceNet, IO-Link, some kinds of Industrial Ethernet, etc. [16] [17] a b "Essential Connector Terms and Definitions for Specifiers of Interconnect Wiring Systems" (PDF). Glenair, Inc. 2004 . Retrieved 2019-06-25.