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5.5 / 2.1mm Barrel Connector - DC Power Plug
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A 5.5×2.1mm DC barrel connector plug for adding a standard power connector to the end of your own wires. The outer shell unscrews to reveal solder terminals ...
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A 5.5×2.1mm DC barrel connector plug for adding a standard power connector to the end of your own wires. The outer shell unscrews to reveal solder terminals and a crimp strain relief, making it easy to wire up custom power cables.
This is the most common barrel jack size used with Arduino boards, LED strips, and DC power supplies.
Specifications
- Connector Type – DC barrel plug (male)
- Outer Diameter – 5.5 mm
- Inner Diameter (Centre Pin) – 2.1 mm
- Termination – Solder terminals with crimp strain relief
Ideal For
- Custom DC power cables for Arduino and other boards
- Replacing damaged power plugs
- DIY power supply wiring
Package Contents
- 1× 5.5/2.1mm DC Barrel Connector Plug
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.
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