DC Power Connectors

What are DC Power connectors?
DC power connectors are designed to supply direct current from a mains connection to a device and is typically used to power small to medium appliances. Although there are various types of DC Connector, the most common type is sometimes referred to as a Barrel Connector. This style of connector features an insulated cylindrical tip, sometimes called a sleeve, or ring, which accepts a pin from the socket counterpart. This design ensures a safe and secure connection, with a smooth disconnect and connect action. DC connectors have many more standard types that are not interchangeable. The dimensions and arrangement of DC connectors can be chosen to prevent accidental interconnection of incompatible sources and loads.

DC Jacks
The standard dc barrel plug or jack has two conductors, one each for power and ground. Convention is for the centre pin to be power and the outer sleeve to be ground, but reversing the connections is acceptable. Some power jack models include a third conductor which forms a switch with the outer sleeve conductor. One use of the switch function is to detect or indicate the insertion of a plug. Another use of the switch function is to select between power sources dependent upon whether a plug is or is not inserted into the jack.
Applications
Though USB powered devices are more and more common, DC power plugs are still a serviceable standard in powering smaller appliances. They can typically be used with certain portable computers, electronic instruments and sound systems.

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Description Price DC Power Connector Type Current Rating Inner Diameter Body Orientation Outer Diameter Voltage Rating Length Width Mounting Type IP Rating Minimum Cable Diameter Maximum Cable Diameter Pin Diameter Contact Plating
RS Stock No. 163-1837
Mfr. Part No.694106402002
$1.419
Each (In a Bag of 500)
units
DC Socket 3.0A - Straight - 20.0 V 9.0mm 14mm Panel Mount - - - 5.5mm Gold, Tin
RS Stock No. 122-4869
Mfr. Part No.694101308002
$2.31
Each (In a Pack of 5)
units
DC Socket 2.0A - Right Angle - 12.0 V 5.0mm 11.5mm Panel Mount - - - 2.5mm Gold, Tin
RS Stock No. 122-4875
Mfr. Part No.694103304002
$2.152
Each (In a Pack of 5)
units
DC Socket 2.0A - Right Angle - 20.0 V 6.3mm 9mm Panel Mount - - - 1.35mm Gold, Tin
RS Stock No. 106-5642
Mfr. Part No.1-2129345-1
$21.80
1 Bag of 5
Bag(s)
DC Socket 7.0A - Right Angle - 25.0 V 16.2mm 14.25mm PCB Mount - - - - Gold, Tin
RS Stock No. 705-1522
Mfr. Part No.767KS15
$11.07
Each
units
DC Plug - 2.1mm Straight 5.5mm - 57.1mm - Cable Mount - - - - Nickel
RS Stock No. 143-8914
BrandRS PRO
$8.042
Each (In a Bag of 5)
units
DC Socket - - Straight - - 21.3mm 14.25mm Panel Mount - - - 2.5mm Gold, Nickel
RS Stock No. 122-4874
Mfr. Part No.694103303002
$1.552
Each (In a Pack of 5)
units
DC Socket 2.0A - Right Angle - 30.0 V 5.0mm 11.1mm Panel Mount - - - 3.5mm Gold, Tin
RS Stock No. 143-8913
BrandRS PRO
$8.322
Each (In a Bag of 5)
units
DC Socket - - Straight - - 21.3mm 14.25mm Panel Mount - - - 2mm Gold, Nickel
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Miniature plugs suitable for powering portable radios, calculators plus test and measurement instruments from a fixed, low-voltage d.c. source. Chassis mounting sockets for the 2.1mm plugs and adaptor leads terminated with 2.1mm and 2.5mm plugs and sockets are also available. ...
Miniature plugs suitable for powering portable radios, calculators ...
Description:
Miniature plugs suitable for powering portable radios, calculators plus test and measurement instruments from a fixed, low-voltage d.c. source. Chassis mounting sockets for the 2.1mm plugs and adaptor leads terminated with 2.1mm and 2.5mm plugs and sockets are also available. ...