5.5x2.1mm DC Barrel Connector Kit – Male Plug & Female Jack

5.5x2.1mm DC Barrel Connector Adapter Kit – Male Plug & Female Panel Mount Jack

Get a rock-solid DC power connection for your next DIY build with this versatile 5.5x2.1mm DC Barrel Connector Kit. Whether you're wiring up a custom power supply, assembling a speaker system, modifying a guitar amplifier, or replacing a worn-out charging port on a toy electric vehicle, this kit has everything you need for a clean, stable, and reliable DC power link.

Product Specifications

• Connector Size: 5.5 x 2.1mm (industry-standard barrel size)
• Included Connectors: DC Male Plug + DC Female Panel Mount Jack
• Colors Available: Black, Red
• Rated Voltage: DC 36V
• Rated Current: 3A
• DC Male Plug: 30cm wire, 18AWG cable
• DC Female Jack: 15cm wire, 20AWG cable
• Panel Mount Hole Size: 12mm (threaded)
• Polarity: Red wire = Positive (+), Black wire = Negative (−)
• Battery Included: No
• Wireless: No
• Made in China

Wide Range of Applications

This DC barrel connector kit is built for makers and tinkerers. Common uses include:

• DIY electronics projects and custom modifications
• Speaker assembly and audio equipment wiring
• Custom power supply fabrication
• Replacing damaged, rusted, or worn charging ports on toy electric vehicles
• Guitar amplifier modifications
• CCTV camera power connections
• Any project requiring a dependable 5.5x2.1mm DC barrel power interface

Why Choose This Kit?

• ✅ Standard 5.5x2.1mm sizing — compatible with the vast majority of DC-powered devices
• ✅ Pre-wired leads — saves time; no need to solder from scratch
• ✅ Threaded panel mount female jack — installs securely into a 12mm hole for a professional finish
• ✅ Protective cap included — keeps the connector port dust-free when not in use
• ✅ Color-coded wiring — red/black leads make polarity identification easy and error-free
• ✅ Rated for up to 36V DC / 3A — handles a broad range of low-voltage applications

Package Contents

Your kit includes a 5.5x2.1mm DC Male Plug with 30cm 18AWG cable, a 5.5x2.1mm DC Female Panel Mount Jack with 15cm 20AWG cable, and a protective cap. Multiple package options may be available — please select the configuration that suits your project.

Please Note

• Please verify this is the correct connector size before purchasing.
• Allow ±0–2cm tolerance due to manual measurement (1 inch = 25.4mm).
• Actual product colour may vary slightly from on-screen images.

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Frequently Asked Questions

Q: What size panel hole does the DC female jack require for mounting?

A: The threaded DC female panel mount jack requires a 12mm diameter hole for installation, making it compatible with standard project enclosures and chassis panels.

Q: What is the maximum voltage and current this DC barrel connector kit can handle?

A: This 5.5x2.1mm DC barrel connector kit is rated for up to 36V DC and 3A continuous current, suitable for a wide range of low-voltage DIY electronics, CCTV cameras, speakers, and custom power supply projects.

Q: Are the wires pre-attached to the connectors?

A: Yes! The DC male plug comes with a 30cm 18AWG pre-wired lead, and the DC female jack comes with a 15cm 20AWG pre-wired lead. Both are color-coded: red for positive (+) and black for negative (−), making wiring quick and straightforward.

Q: Is this connector kit compatible with CCTV cameras and security systems?

A: Yes. The 5.5x2.1mm barrel connector is an industry-standard size widely used in CCTV cameras, security systems, and other DC-powered surveillance equipment. This kit provides a reliable, secure power connection for those applications.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.