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DC Power Connectors

DC power connectors, also known as barrel connectors, are electrical connectors specifically designed to supply direct current (DC) power from the main connection to a device. Typically, they serve to power small and medium equipment with added cable assemblies. These connectors are comprised of three components, i.e., jack, plug, and receptacle, to operate. Read on to explore these exquisite connectors' different types, uses, and selection factors.

Popular Types of DC Power Connectors

The DC power connector is classified into several types; however, the standard connectors include barrel connectors, DIN connectors, and USB connectors.

  • Barrel Connectors: The barrel connector is the most standard and cost-effective type, which features an insulated cylindrical tip. The ring (sleeves) within the end accepts a pin from the socket counterpart. This design aims to ensure a smooth disconnect and reconnect action and to make a connection safe and secure. Rather than that, it has many types with varied dimensions that cannot be exchanged. 
  • DIN Connectors: DIN power connectors encase four socket contacts, or pins, in a circular housing. They are ideal for moderate power applications where barrel connectors cannot carry a specific amount of power. 
  • USB Connectors: Initially, USB connectors were designed to provide digital signals and DC power. However, the compatibility features such as USB power voltage levels of these connectors make them ideal for power-only applications. They also come in various variants with numerous uses in different environments.

Choosing the Right DC Power Connectors

Special care should be taken before selecting these connectors. It is crucial to consider the insertion depth, the diameter of the inner pin, and the outer sleeve to mate them properly between jacks and plugs. 

Why Use a DC Power Connector?

These power connectors are a cost-effective source, and with integral conductors, they help prevent an accidental short. Furthermore, they also avoid component damaging risks of plugging them inappropriately or into incorrect port pins.

What are the Typical Uses of DC Power Connectors?

The DC power plugs are ideal for smaller power appliances. They are mainly used in:

  • Electronic Devices
  • Portable Computers 
  • Automotive Accessories
  • Battery Packs
  • Sound Systems

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760-RS, Switchcraft
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L712RAS, Switchcraft
315 In Stock
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722A-RS, Switchcraft
671 In Stock
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1614 20, Lumberg
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51215217, Lumberg
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1610 07, Lumberg
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PJ-001AH-67, Same Sky
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New Items
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RS_884-0932, RS PRO

RS_884-0932, RS PRO

RS PRO Locking DC Plug with 2m Cord From RS PRO, this lockable DC barrel-type power jack is a high-quality power connector solution, and comes complete with a pre-fitted cable. The DC connector plug is has a sturdy ABS body and a nickel-plated brass contact for a dependable connection. The connector plug also features a crimp strain relief for securing the cable insulation, meaning this connector is securely terminated to the wire. This DC power connector is ideal for powering small appliances such as portable radios. • Stock No. 884-0932 has a 2.5 mm locking DC plug and 2 m cord • Stock No. 884-0941 has a 2.1 mm locking DC plug and 2 m cord Features and Benefits • Contact resistance 30 mΩ max. • Current rating 2 Amps max. at 16 V dc • Insulation resistance 100MΩ at 500 V dc • Dielectric withstand voltage 500 V ac for 1 minute • Power cords are 2 metres in length Applications Sometimes referred to as a barrel jack, this DC power plug is widely used in the powering and charging of smaller electronic appliances from common domestic mains points, or fixed low-voltage DC sources. Their simple sleeve and pin design makes them easy to connect, and they are usually attached to AC wall adaptors. They can often be found in; • Laptops • Wireless Speakers • Radios and Sound Systems • Games consoles Why RS PRO? RS PRO aims to be your go-to brand where dependability and affordability are a must. From must-have tools to component essentials, RS PRO employ vigorous in-house testing to assure maximum quality. Where you see the RS PRO brand, you know you're getting components you can trust. When it comes to electronic connectors, RS PRO supplies a huge variety of solutions. Whether you're connecting industrial machinery in an automated factory or implementing IT solutions in a commercial office, RS PRO is with you every step of the way. Features and Benefits: • Contact resistance 30 mΩ max. • Current rating 2 Amps max. at 16 V dc • Insulation resistance 100MΩ at 500 V dc • Diel...
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RS_487-832, RS PRO

RS_487-832, RS PRO

RS Pro Panel Mount DC Power Socket Typical Applications Features and Benefits
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RS_487-814, RS PRO

RS_487-814, RS PRO

RS Pro Power Cable Plug, Push Fit From RS PRO, this cable mounted DC barrel-type power jack is a high-quality power connector solution. It features an outer threaded sleeve that screw mates to the chassis mount jack outer thread for a highly secure connection. The DC connector plug is has a sturdy ABS body and a nickel-plated brass contact for a dependable connection. The connector plug also features a crimp strain relief for securing the cable insulation, meaning this connector is securely terminated to the wire. This DC power connector is ideal for powering small appliances such as portable radios. Features and Benefits • This plug is current rated for 5 A and voltage rated for 12 V • 5.5mm Plug Diameter • ABS Plastic Housing • Maximum Contact Resistance of 30 mΩ Applications Sometimes referred to as a barrel jack, this DC power plug is widely used in the powering and charging of smaller electronic appliances from common domestic mains points. Their simple sleeve and pin design makes them easy to connect, and they are usually attached to AC wall adaptors. They can often be found in; • Laptops • Wireless Speakers • Radios and Sound Systems • Games consoles Why RS PRO? RS PRO aims to be your go-to brand where dependability and affordability are a must. From must-have tools to component essentials, RS PRO employ vigorous in-house testing to assure maximum quality. Where you see the RS PRO brand, you know you're getting components you can trust. When it comes to electronic connectors, RS PRO supplies a huge variety of solutions. Whether you're connecting industrial machinery in an automated factory or implementing IT solutions in a commercial office, RS PRO is with you every step of the way. Brought to you under the trust RS Pro brand, this cable mounted plug has a simple push-fit connection for quick and convenient mating. It is ideal for powering small appliances such as portable radios. The plug also features a crimp strain relief for securing the cable insulati...
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RS_487-854, RS PRO

RS_487-854, RS PRO

RS Pro Power Cable Plug, Push Fit From RS PRO, this cable mounted DC barrel-type power jack is a high-quality power connector solution. It features an outer threaded sleeve that screw mates to the chassis mount jack outer thread for a highly secure connection. The DC connector plug is has a sturdy ABS body and a nickel-plated brass contact for a dependable connection. The connector plug also features a crimp strain relief for securing the cable insulation, meaning this connector is securely terminated to the wire. This DC power connector is ideal for powering small appliances such as portable radios. Features and Benefits • This plug is current rated for 5 A and voltage rated for 12 V • 5.5mm Plug Diameter • ABS Plastic Housing • Maximum Contact Resistance of 30 mΩ Applications Sometimes referred to as a barrel jack, this DC power plug is widely used in the powering and charging of smaller electronic appliances from common domestic mains points. Their simple sleeve and pin design makes them easy to connect, and they are usually attached to AC wall adaptors. They can often be found in; • Laptops • Wireless Speakers • Radios and Sound Systems • Games consoles Why RS PRO? RS PRO aims to be your go-to brand where dependability and affordability are a must. From must-have tools to component essentials, RS PRO employ vigorous in-house testing to assure maximum quality. Where you see the RS PRO brand, you know you're getting components you can trust. When it comes to electronic connectors, RS PRO supplies a huge variety of solutions. Whether you're connecting industrial machinery in an automated factory or implementing IT solutions in a commercial office, RS PRO is with you every step of the way. Brought to you under the trust RS Pro brand, this cable mounted plug has a simple push-fit connection for quick and convenient mating. It is ideal for powering small appliances such as portable radios. The plug also features a crimp strain relief for securing the cable insulati...
New items
RS_476-151, RS PRO

RS_476-151, RS PRO

RS Pro Locking Power Jack Brought to you under the trust RS Pro brand, this panel mounted jack features a threaded sleeve which screw mates to the cable mount plug outer thread for secure fixing. It is ideal for powering small appliances such as portable radios. The sockets have a sleeve/shunt function that permits automatic switchover from ac to dc when the plug is inserted or withdrawn. The split centre pins are shaped to hold the mating plug firmly. Features and Benefits • Maximum panel thickness: 3.1mm • Contact Resistance: 30mΩ Max • Insulation Resistance: 100MΩ @ 500Vdc • Dielectric Withstand: 500 V ac • Contact Rating: 5 A, 12 V ac Resistive • Contact Material: Silver Plated Copper Alloy • Life: 10000 Insertions/Withdrawals Minimum
New items
765, Switchcraft

765, Switchcraft

Power Plugs Standard push-fit cable plugs are available in red or black. Screw locking types feature an outer threaded sleeve which screw mates to the chassis mount jack outer thread for secure fixing. This plug will also mate with the PCB jack but does not lock. All plugs feature a crimp strain relief for securing the cable insulation. Plug diameters, 5.5 mm Rated at 12 V, 5 A Technical specification Depth (mm) (inc pins) 18.1 max Height (mm) 20.5 Width (mm) 9.0 Pin Dia. (mm) 2.1 or 2.5 Plugs & Sockets 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. Contacts are nickel/silver plated brass.Connector bodies are moulded in ABS plastic Warning Not to be used as mains connectors
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694106106102, Wurth Elektronik

694106106102, Wurth Elektronik

Wurth WR-DC SMT Mount DC Power Jacks - 6.4 mm Barrel Diameter PCB SMT mount DC power jacks or barrel connectors with a 6.4mm barrel diameter. These SMT mount right angle DC power jacks have an internal normally closed single switch and internal pin diameters of 2.05 mm and 2.55 mm. The stamped contacts of these DC power jacks are gold plated and the housings are made from black UL94-V0 PA9T. Board guides are incorporated into the bottom of the housing to aid positioning on the PCB. Stock numbers 122-4878 and 122-4882 also have four soldering pads. Plugs & Sockets 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. Contacts are nickel/silver plated brass.Connector bodies are moulded in ABS plastic
New items
487-814, RS Pro

487-814, RS Pro

RS Pro Power Cable Plug, Push Fit Brought to you under the trust RS Pro brand, this cable mounted plug has a simple push-fit connection for quick and convenient mating. It is ideal for powering small appliances such as portable radios. The plug also features a crimp strain relief for securing the cable insulation. Features and Benefits • 5.5mm Plug Diameter • ABS Plastic Housing • Maximum Contact Resistance of 30 mΩ Plugs & Sockets 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. Contacts are nickel/silver plated brass.Connector bodies are moulded in ABS plastic
New items
771-9174, RS Pro

771-9174, RS Pro

DC Power Plugs Brought to you under the trusted RS Pro Brand, this professional range of 12 V dc power plugs are available in a variety of sizes including 1.4, 2.1 and 2.5mm. The power plugs are suitable for many applications, such as powering laptop computers and portable electronic devices. Features and Benefits: • Cable mount connectors • Solder terminals • Overall Diameter 10 mm • Variety of pin diameters available Plugs & Sockets 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. Contacts are nickel/silver plated brass.Connector bodies are moulded in ABS plastic Warning Not to be used for direct mains connection.
New items
694108402002, Wurth Elektronik

694108402002, Wurth Elektronik

Wurth WR-DC PCB Mount DC Power Jacks - 6.4 mm Barrel Diameter PCB mount DC power jacks or barrel connectors with a 6.4mm barrel diameter. These PCB mount DC power jacks have an internal normally closed single switch and internal pin diameters of 2.05 mm and 2.55 mm. The stamped contacts of these DC power jacks are gold plated and the housings are made from black UL94-V0 PA66. Plugs & Sockets 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. Contacts are nickel/silver plated brass.Connector bodies are moulded in ABS plastic
New items
4840.2230, Schurter

4840.2230, Schurter

DC Power Plugs and Sockets From RS pro, this DC power connector has a 1.4mm centre pin. The cable mount DC connector is easy to wire and is suitable for a wide range of 2A 18 V dc power applications.. Plugs & Sockets 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. Contacts are nickel/silver plated brass.Connector bodies are moulded in ABS plastic Warning Not to be used as mains connectors
New items
694101308002, Wurth Elektronik

694101308002, Wurth Elektronik

Wurth WR-DC PCB Mount Low Profile DC Power Jack - 2.8 mm Barrel Diameter PCB mount DC power jack or barrel connector with a low profile design and a 2.8mm barrel diameter. This right angle PCB mount DC power jack has an internal normally closed single switch and an internal pin diameter of 0.65 mm. The stamped contacts of this DC power jack are gold plated and the housing is made from black UL94-V0 PA66. Board guides are incorporated into the bottom of the housing to aid positioning on the PCB Plugs & Sockets 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. Contacts are nickel/silver plated brass.Connector bodies are moulded in ABS plastic
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