Little Bird
2.1mm DC Power Line Female Connector
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A standard 2.1mm barrel plug connector for DC power applications. This female line connector features solder terminals for secure, permanent connections to y...
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A standard 2.1mm barrel plug connector for DC power applications. This female line connector features solder terminals for secure, permanent connections to your power cables.
The 5.5mm outer / 2.1mm inner diameter is the most common DC power connector size, compatible with a wide range of power supplies, battery packs, and electronics projects.
Key Features
- Standard Size – 5.5mm outer × 2.1mm inner diameter fits most DC power supplies
- Solder Connection – Secure attachment via solder tags
- Durable Construction – Plastic housing with metal contacts
- Line Mount – Designed for inline cable connections
Specifications
- Inner Diameter: 2.1mm
- Outer Diameter: 5.5mm
- Barrel Length: 9.5mm
- Connector Type: Barrel Plug / DC Power Plug
- Attachment Method: Solder Tag
- Housing Material: Plastic
- Contact Material: Metal
Ideal For
- Arduino and microcontroller projects
- LED strip power connections
- Custom power cable assemblies
- Repair and replacement of damaged connectors
Package Contents
- 1× 2.1mm DC Power Line Female Connector
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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