DC Power Plug Socket 5.5mm x 2.1mm Male Female Connector

Keep your electronics and DIY power projects running smoothly with this DC Power Plug Socket Male Female Connector. Designed for the popular 5.5mm outer diameter / 2.1mm inner diameter barrel standard, this connector set delivers a secure, stable electrical connection for a wide range of low-voltage DC applications — from CCTV cameras and LED drivers to routers, power supplies, and hobby electronics.

Whether you're building a custom power harness, replacing a worn-out connector, or wiring up a new project, this reliable plug-and-socket pair makes the job straightforward and secure.

Key Features

• Standard 5.5mm x 2.1mm barrel size — compatible with the most widely used DC power connectors on the market
• Matching male & female set — ideal for inline connections, panel mounting, and custom power cables
• Durable construction — built to handle repeated plug/unplug cycles without losing contact integrity
• Low-resistance connection — ensures efficient power transfer with minimal voltage drop
• Versatile use — suitable for CCTV power leads, LED strip lighting, Arduino/Raspberry Pi projects, routers, and more
• Easy to wire — solder or screw-terminal options make installation accessible for DIYers and professionals alike

Specifications

• Connector Type: DC Barrel (Male & Female)
• Outer Diameter: 5.5 mm
• Inner Diameter: 2.1 mm
• Model: 005 022B

Common Applications

• CCTV / security camera power leads
• LED strip lighting and drivers
• Arduino, Raspberry Pi, and hobbyist electronics
• Network routers and modems
• Custom DC power distribution boards

For guidance on safe low-voltage wiring practices, visit the OSHA Electrical Safety resource page.

Frequently Asked Questions

Q: What size DC barrel connector is this — 5.5mm x 2.1mm or 5.5mm x 2.5mm?

A: This connector is the 5.5mm outer diameter x 2.1mm inner diameter (5.5/2.1) barrel standard, which is the most common DC power connector size used in CCTV cameras, LED drivers, routers, and general electronics. Always verify your device's barrel size before ordering to ensure compatibility.

Q: Can I use this connector for both panel mounting and inline cable connections?

A: Yes. The female socket is suitable for panel mounting, while the male plug is designed for inline cable or direct device use. Together they create a reliable, detachable DC power connection point — perfect for custom power setups, workbenches, or permanent installations.

Q: What is the maximum voltage and current rating for these DC connectors?

A: These connectors are designed for standard low-voltage DC applications. Always check the specific product listing variant for rated voltage and current figures, and ensure your power supply and load remain within safe operating limits for your application.