Pimoroni
2.1mm Plug/Jack to Screw Terminal Block - Female
$4.95
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A handy adapter that converts bare wire connections into a standard 2.1 mm DC barrel plug. Strip your battery pack or power supply wires, secure them in the ...
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A handy adapter that converts bare wire connections into a standard 2.1 mm DC barrel plug. Strip your battery pack or power supply wires, secure them in the screw terminals, and plug straight into any board or device with a 2.1 mm barrel jack input — no soldering required.
Key Features
- 2.1 mm DC Barrel Plug – Standard centre-positive male connector on one end
- Screw Terminal Block – Tool-free wire connection on the other end, labelled +/−
- No Soldering Needed – Screw down bare wires for a secure, removable connection
Tip: Need the opposite? The Male version has a barrel jack (female socket) instead, for breaking out a wall adapter's power to screw terminals.
Ideal For
- Connecting battery packs or bench supplies to barrel-jack devices
- Quick prototyping without soldering a DC jack onto your PCB
- LED strip and accessory power wiring
Package Contents
- 1× 2.1 mm Plug to Screw Terminal Block Adapter (Female)
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.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- Terminal block
- A terminal block is a connector that joins wires together in a neat, removable, or serviceable way, usually clamping each wire under a screw or spring instead of soldering. It makes it easier to connect, change, or service wiring without permanent joints.
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