DC Power Male Plug Adapter 5.5mm x 2.5mm – 14mm/9mm Barrel

DC Power Male Plug Jack Adapter – 5.5mm × 2.5mm

Keep your electronics powered up and properly connected with this reliable 5.5mm × 2.5mm DC Power Male Plug Jack Adapter. Available in both 14mm and 9mm barrel lengths, this compact connector is ideal for DIY electronics projects, power supply repairs, LED drivers, security cameras, and a wide range of low-voltage DC applications.

Key Features

• Inner Diameter: 2.5mm | Outer Diameter: 5.5mm – industry-standard sizing for broad compatibility
• Barrel Length Options: 14mm or 9mm to fit your specific application
• Wide Voltage Range: Compatible with 5V, 12V, 20V, and 30V DC power supplies
• Low Voltage Rated: CE certified for below 50V AC or 75V DC (EU LVD compliant)
• Durable Black Finish: Sturdy plastic housing with reliable metal contacts for a secure, long-lasting connection
• No Battery or Wireless Components: Simple, direct wired connection for maximum reliability
• Compact & Lightweight: Easy to install in tight spaces or custom enclosures

Specifications

• Model: 5.5×2.5mm DC Plug
• Connector Type: Male DC Barrel Plug
• Outer Diameter: 5.5mm
• Inner (Pin) Diameter: 2.5mm
• Barrel Length: 14mm / 9mm
• Voltage: 5V / 12V / 20V / 30V DC
• Certification: CE
• Color: Black
• Made in: Mainland China

Common Applications

• DIY electronics and maker projects
• Power supply adapters and cable repairs
• LED strip drivers and lighting systems
• CCTV / security camera power connections
• Router, modem, and small appliance power leads
• Arduino, Raspberry Pi, and other microcontroller setups

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Safety & Standards Reference

For guidance on electrical safety standards and low-voltage devices, refer to the U.S. Consumer Product Safety Commission (CPSC) and OSHA Electrical Safety Guidelines.

Frequently Asked Questions

Q: What devices are compatible with the 5.5mm × 2.5mm DC power plug?

A: The 5.5mm × 2.5mm DC barrel connector is one of the most widely used standard sizes in consumer electronics. It is commonly compatible with 12V CCTV cameras, LED drivers, routers, power supply units, Arduino boards, and many other DC-powered devices that use a standard barrel jack.

Q: What is the difference between the 14mm and 9mm barrel lengths?

A: The barrel length refers to the depth of the metal pin on the plug. A 14mm barrel is suited for applications requiring a deeper reach into the jack socket, while the 9mm barrel works well for shallower or more compact connectors. Check your device's jack depth before selecting the correct size.

Q: Is this adapter safe for use with 12V power supplies?

A: Yes. This DC plug adapter is rated for 5V, 12V, 20V, and 30V DC operation and is CE certified for low-voltage use (below 50V AC or 75V DC). Always ensure your power supply's voltage and polarity match your device's requirements before connecting.

Q: Can this plug be soldered onto a wire?

A: Yes, this male DC barrel plug is designed to be soldered onto bare wire leads, making it ideal for custom cable builds, repair work, and DIY electronics projects. Strip back approximately 5–8mm of insulation from each wire before soldering.