2.1 mm × 5.5 mm Female DC Power Connector — Screw-Terminal Jack Adapter
Make neat, reliable low-voltage connections in seconds with this 2.1 mm × 5.5 mm female DC power connector. Ideal for LED strip projects, CCTV cameras and other 12 V DC devices, its tool-light screw terminals let you connect bare wires without soldering. Just loosen the screws, insert the positive/negative conductors, tighten, and you’re done — a professional, tidy finish with no taped joints.
Main benefits
- Fast, tidy wiring: screw terminals mean no soldering and no tape.
- Universal size: mates with the common Ø5.5 mm outer / Ø2.1 mm inner barrel plugs used on LED and CCTV gear.
- Secure & reusable: firm clamping prevents loose power cables and can be re-terminated when needed.
- Compact housing: small body for easy routing inside profiles, junctions and enclosures.
- Compliance: CE & CCC for added peace of mind.
Technical specification
| Connector type | Female DC barrel jack, screw-terminal |
| Barrel size | Outer Ø5.5 mm, Inner Ø2.1 mm |
| Material | Plastic & metal |
| Colour | Black |
| Working voltage* | 12 V DC (typical low-voltage systems) |
| Input / Output voltage* | 12 V DC (pass-through) |
| Max current (variant) | 2 A / 6 A / 12.5 A (model dependent) |
| Dimensions | L40 × W15 × H13 mm |
| Operating temperature | 0 – 40 °C |
| Storage temperature | −20 – 60 °C |
| Ambient humidity | 0 – 95 % non-condensing |
| Compliance | CE, CCC |
| Notes | *Connector is passive; ensure your driver/supply matches the device voltage & current. |
Installation (quick guide)
- Isolate power from your LED driver / power supply.
- Strip 5–7 mm of insulation from the DC cable ends and twist the strands.
- Loosen the two terminal screws, insert + (red) and − (black) into the marked terminals, then tighten firmly.
- Plug a 2.1 mm × 5.5 mm male DC plug from your supply into the connector and test.
What’s in the box
1 × 2.1 mm × 5.5 mm female DC power connector
Recommended pairings
FAQs
Does it require soldering?
No — the screw terminals provide a firm, solder-free connection.
Is the polarity fixed?
You choose the polarity when wiring. Most LED/CCTV equipment is centre-positive; confirm device markings before connecting.
Will this work with 24 V?
The listing specifies 12 V typical use. If you need higher voltage/current, select a connector variant with the appropriate rating.
Package includes
1 × DC female connector
Tip: For a fully plug-and-play run, pair this jack with a compatible male DC plug lead from our accessories range.
