SparkFun
9V to Barrel Jack Adapter
A simple 9V battery clip cable with a 5.5 × 2.1 mm centre-positive barrel jack on the other end. Plug it onto a standard 9V battery and connect directly to a...
A simple 9V battery clip cable with a 5.5 × 2.1 mm centre-positive barrel jack on the other end. Plug it onto a standard 9V battery and connect directly to any device with an onboard barrel jack — perfect for powering an Arduino Uno or other development board from battery.
Key Features
- 9V Battery Snap – Standard clip fits all 9V batteries
- Barrel Jack Output – 5.5 × 2.1 mm centre-positive connector
- Plug-and-Play – No soldering required
Ideal For
- Portable Arduino and development board projects
- Battery-powered prototyping and testing
- Any device with a 5.5/2.1 mm DC barrel jack input
Also Available
Package Contents
- 1× 9V to Barrel Jack Adapter Cable
Jargon buster
Plain-language definitions for the technical terms used above.
- DC barrel jack
- A round power connector commonly used for low-voltage DC power supplies, often described by its outer and inner diameters such as 5.5 x 2.1 mm. Matching the barrel size and polarity is important so the plug physically fits and powers the device correctly.
Find this product in
Brands
Power & Batteries
Supplier page — sparkfun.com
Supplier Description · 399.7 KB · Click any page to view full size
Project Guides
Step-by-step builds that use this part
Related Tutorials
Free guides on learn.littlebird.com.au
