Headers & Connectors

SKU: AF-368 | Brand: Adafruit

A simple adapter that converts a 2.1 mm DC barrel jack to screw terminals, making it easy to connect a DC power supply to boards or projects that lack a DC jack. The terminals are labelled with positive and negative p...

SKU: SF-PRT-10811 | Brand: SparkFun

This DC power jack/connector is just like the other one that we carry except that it’s terminated with breadboard-friendly pins instead of wide solder terminals. These are also compatible with our DC wall supplies and...

SKU: SF-PRT-10288 | Brand: SparkFun

This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive female barrel jack. If you have a power supply with a barrel jack an...

SKU: AF-369 | Brand: Adafruit

If you need to connect a battery pack or wired power supply to a board that has a DC jack - this adapter will come in very handy! There is a 2.1mm DC plug on one end, and a screw terminal block on the other. The termi...

SKU: AF-3642 | Brand: Adafruit

A 2.1 mm DC barrel jack with a built-in slide switch, giving you 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 dro...

SKU: AF-5764 | Brand: Adafruit

The Adafruit TRRS Jack Breakout Board provides easy access to all four contacts of a 3.5mm TRRS (Tip-Ring-Ring-Sleeve) audio jack — commonly used for stereo audio plus a microphone channel, as found on mobile phone he...

SKU: SF-PRT-00119 | Brand: SparkFun

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

SKU: SF-PRT-13126 | Brand: SparkFun

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...

SKU: AF-3310 | Brand: Adafruit

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 ...

SKU: SF-PRT-10287 | Brand: SparkFun

This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive male barrel jack. If you need to connect bare wires to a barrel jack...

SKU: AF-6075 | Brand: Adafruit

A 5.5/2.1mm DC barrel jack mounted on a flexible, sewable base for wearable tech and fabric-based projects. The jack sits horizontally with red (positive) and black (ground) wires extending from the bottom for easy po...

SKU: AF-610 | Brand: Adafruit

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 s...

SKU: AF-1799 | Brand: Adafruit

A solder-on 3.5 mm (1/8") TRRS plug for building custom audio cables. Made from durable metal with a flexible spring strain relief, it provides a solid, professional-quality connection. Solder your wires to the four c...

SKU: TB-PP0510 | Brand: Little Bird

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...

SKU: AF-3643 | Brand: Adafruit

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 ...

SKU: PL-2449 | Brand: Pololu

This connector adapts a 5.5 × 2.1 mm DC barrel jack to a pair of screw terminals spaced approximately 5 mm (0.2″) apart. The terminals are labeled positive and negative, with the positive termi...

SKU: PI-COM1303 | Brand: Pimoroni

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

SKU: PI-ADP011 | Brand: Pimoroni

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 ...

SKU: PI-ADP010 | Brand: Pimoroni

A handy adapter that converts a 2.1 mm DC barrel jack (female socket) into a screw terminal block. Plug a wall adapter or barrel-plug cable into the jack end, and access the power lines via labelled +/− screw terminal...