5.5x2.1mm DC Barrel Connector Pairs – Male Plug & Female Jack 5pk

5.5 x 2.1mm DC Barrel Power Connector Pairs – Male Plug & Panel-Mount Female Jack

Keep your electronics powered and your wiring neat with these reliable 5.5 x 2.1mm DC barrel power connectors. Each set includes a screw-nut panel-mount female jack and a matching male plug, giving you a clean, secure DC power connection for a wide range of devices. You get 5 pairs in every pack — perfect for prototyping, repairs, DIY electronics projects, and custom power supply setups.

Key Features

• Industry-Standard Size: 5.5mm outer diameter / 2.1mm inner pin — compatible with the majority of DC power adapters and barrel connectors
• Panel-Mount Female Jack: Screw-nut design for secure, flush mounting into enclosures, project boxes, and equipment panels
• Durable Construction: Built with galvanized metal contacts and a sturdy black plastic housing for long-lasting performance
• Solder-Terminal Connection: Simply solder your wires to the terminals for a solid, vibration-resistant electrical connection
• Versatile Compatibility: Works with media players, MP3/MP4 players, audio/video equipment, car audio systems, notebooks, mobile phones, PDAs, and more
• Great Value: Comes in a pack of 5 pairs (5 male plugs + 5 female jacks)

Specifications

Compatible Devices Include

• Media Players, MP3 & MP4 Players
• Audio / Video (AV) Equipment
• Notebooks & Laptops
• Mobile Phones, Smartphones & PDAs
• Car Audio Systems
• DIY Electronics & Maker Projects
• CCTV / Security Camera Power Lines
• LED Strip Power Supplies

How to Install

1. Drill or find an appropriate hole in your enclosure or panel.
2. Insert the female jack and secure it firmly using the screw nut.
3. Solder your DC power wires to the solder terminals on the jack.
4. Connect the male DC barrel plug into the jack — your circuit is ready.

Great for DIY & Maker Projects

Whether you're building a custom power distribution panel, repairing electronics, or wiring up a Raspberry Pi or Arduino project, these connectors are an essential part of any electronics toolkit. Browse our "1% Better Every Day" Motivational Canvas Poster and other products to complete your workspace setup. For hobbyist electronics tips, check out the U.S. Consumer Product Safety Commission (CPSC) for electrical safety guidance when working on DIY projects.

Also explore our "Everything Is Fine" Funny Men's Graphic T-Shirt for a fun addition to your workshop wardrobe!

Learn more: Coaxial power connector

Frequently Asked Questions

Q: What is the connector size and will it fit my DC adapter?

A: These connectors use the 5.5mm outer diameter / 2.1mm inner pin standard — the most common DC barrel size used in consumer electronics, power adapters, LED drivers, CCTV cameras, and DIY boards. If your adapter or device uses a 5.5x2.1mm barrel connector, these will fit perfectly.

Q: Do I need to solder these connectors?

A: Yes. Both the male plug and female jack feature solder terminals, so you'll need a soldering iron to attach your wires. This ensures a reliable, permanent electrical connection ideal for custom builds and repairs.

Q: How do I mount the female jack to a panel or enclosure?

A: The female jack uses a screw-nut panel-mount design. Simply insert it through a hole in your enclosure and tighten the included nut on the back side to hold it securely in place — no glue or extra hardware required.

Q: How many connectors are in the pack?

A: Each pack contains 5 pairs — that's 5 male DC barrel plugs and 5 female panel-mount DC jacks, giving you everything you need for up to 5 separate connections.