All Products

SKU: AF-3842

A compact battery holder for three AA cells with an integrated power cable and DC barrel jack. The series configuration delivers approximately 3.6–4.5V depending on battery chemistry, making it a convenient power source for 3.3V microcontroller projects and portable electronics. The 200mm power ...

SKU: AF-2789

The premise of this MicroUSB to 5.5/2.1mm DC Barrel Jack Adapter is simple. There's a MicroUSB plug on one end and a 5.5mm/2.1mm DC barrel jack with center positive polarity on the other. This allows you to connect one of our 5V 2 Amp, 5V 4A or 5V 10 Amp adapters ...

SKU: AF-276

This FCC/CE certified and UL-listed switching power supply delivers a clean, regulated 5V DC output at up to 2A (2,000mA) via a standard 5.5×2.1mm DC barrel jack. It accepts 110–240V AC input and is suitable for powering LED strips, motors, and other current-hungry 5V devices. Key Features Out...

SKU: AF-327

A 1.5-metre (5 ft) extension cable with a 5.5 / 2.1 mm barrel jack (female) on one end and a barrel plug (male) on the other. Heavy-duty 24 AWG wires handle up to 5 A, making it suitable for powering LED strips, Arduino boards, and other current-hungry projects at a distance. This cable also dou...

SKU: AF-3788

A 4×AA battery holder with a built-in on/off switch and a 13cm (5″) power cable terminating in a centre-positive 2.1mm DC barrel jack. Provides convenient portable power with easy switching for development boards and projects that accept a standard DC barrel jack input. Delivers approximately 4....

SKU: SF-PRT-09518

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 Batt...

SKU: AF-3643

A 2.1 mm DC barrel jack with a built-in rocker switch, giving you a simple on/off control for devices that lack a dedicated power switch. It shares the same PCB footprint as a standard non-switched barrel jack, so it drops straight into existing designs without layout changes. Plug in your power...

SKU: AF-4259

If you need to add a panel-mount connection for USB C, but don't have the time or tools to cut a custom oval or square hole, this Round Panel Mount Plug is the easiest and fastest way to panel-ify your project. It's about 30mm in diameter, so you can drill a hole in your wood, plastic or metal wi...

SKU: AF-610

A panel-mount DC barrel jack that accepts standard 2.1 mm power plugs. The extra-long threaded body fits panels up to 8 mm thick (5/16″), making it suitable for wooden enclosures and thicker project boxes — not just sheet metal. The jack includes a sturdy PCB spacer with three solder-friendly ey...

SKU: DF-FIT0131

A simple 9V battery clip cable with a 5.5 × 2.1 mm centre-positive barrel jack. Plug a 9V battery into one end and connect the other to any device with an onboard barrel jack — ideal for powering Arduinos, development boards, and evaluation boards from battery. Key Features 9V Battery Snap – S...

SKU: SF-PRT-13126

This female barrel jack plug is great for adding a common connector to the end of wires. This jack is compatible with 5.5x2.1mm barrel connectors. The outer shell unscrews to reveal solder terminals and a crimp strain relief. The outer shell has strain relief as well.

SKU: SF-PRT-00119

DC power jack/connector. This is a common barrel-type power jack for DC wall supplies. These are compatible with our DC wall supplies and have a 5.5mm jack, with a 2.1mm center pole diameter. Datasheets: Datasheet