Arduino Power Supplies and Voltage Regulators

SKU: DF-FIT0111 | Brand: DFRobot

A classic 9V battery snap connector with bare wire leads, 15 cm in length. Pair it with a DC Barrel Jack Adapter – Male to power an Arduino directly from a 9V battery. Key Features Bare Wire Leads – Solder or conne...

SKU: DF-DFR0140 | Brand: DFRobot

This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard. It can be either powered from 6-12...

SKU: DF-FIT0110 | Brand: DFRobot

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 ...

SKU: DF-FIT0151 | Brand: DFRobot

A screw-terminal adapter that converts a 5.5 × 2.1 mm centre-positive DC barrel jack connection to bare wire terminals. Plug in a barrel jack power supply on one end and connect the screw terminals to a breadboard, ci...

SKU: AF-1131 | Brand: Adafruit

A 500 mm extension cable with a JST-PH 2-pin socket on one end and a matching plug on the other. The colour-coded wires make it easy to verify correct polarity. Compatible with JST-PH terminated battery packs includin...

SKU: AF-2215 | Brand: Adafruit

A 16.000 MHz quartz crystal in the HC49/US short-style package, supplied with two 20pF load capacitors. The crystal provides higher precision than ceramic resonators, with 30 PPM tolerance and 50 PPM stability — suita...

SKU: SF-PRT-10218 | Brand: SparkFun

A standard 9V alkaline battery (Rayovac). Suitable for powering Arduino boards, breadboard projects, and other electronics — use with a voltage regulator to get a stable 5V output. Key Features 9V Alkaline – Standa...

SKU: AF-5855 | Brand: Adafruit

A compact 5 V, 0.3 W solar panel from Voltaic Systems, built with ETFE (Ethylene Tetrafluoroethylene) construction for superior durability over standard PET or laminate panels. Featuring 10 high-efficiency monocrystal...

SKU: TB-MP3146 | Brand: Little Bird

Introducing our new range of Ultra-slim Switchmode AC adaptors. They are extremely light, sleek and compact; enough to snugly and neatly fit side by side on a power board, no more wasted AC outlets! Incorporates a ...

SKU: DF-FIT0043 | Brand: DFRobot

The second version of the 9V to Barrel Jack Adapter, now featuring a hard plastic battery snap for easier connection and disconnection. Plug a 9V battery into one end and connect the other to any device with a 5.5 × 2...

SKU: SF-PRT-11476 | Brand: SparkFun

This barrel jack plug is great for adding a common connector to the end of our wires. This jack is compatible with 5.5mm barrel jacks that have a 2.1mm center pole diameter. The outer shell unscrews to reveal solder t...

SKU: AF-1125 | Brand: Adafruit

Add a power switch to any project simply by plugging this between the power supply. This is the most useful thing you never knew you needed! You'll want to pick up a bunch for your electronic projects.Comes with a 5.5...

SKU: SF-PRT-09518 | Brand: SparkFun

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...

SKU: DF-FIT0131 | Brand: DFRobot

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...

SKU: AF-4552 | Brand: Adafruit

Power over Ethernet (PoE) splitters can make your project wiring a breeze - and best of all they work to connect any 802.3af-capable router to any Ethernet device, even if it doesn't natively support PoE! The splitter...

SKU: AF-1351 | Brand: Adafruit

A simple 2-way DC barrel jack splitter that lets you power two devices from a single power adapter. Plug in one standard 5.5mm/2.1mm DC barrel jack and get two identical outputs — perfect for powering multiple boards ...

SKU: DF-DFR0105 | Brand: DFRobot

Most project of Arduino may need more than two voltage supply. When feed with from 4.5-35V, this arduino power shield able to provide a voltage range from 1.25-12V with 3A peak current. Ideal for servo control and ot...

SKU: DF-FIT0145 | Brand: DFRobot

A waterproof DC-DC step-down/step-up converter that accepts 8–40V DC input and delivers a stable 12V output at up to 6A (72W). Ideal for powering embedded PCs, single-board computers, and robot electronics from a wide...

SKU: SF-COM-11705 | Brand: SparkFun

We use barrel jacks a lot around here and sometimes we need to pop a switch into the mix. That usually means hacking up a perfectly good barrel jack extension cable, but the whole point of using the barrel jacks was s...

SKU: SF-COM-11706 | Brand: SparkFun

Do you fear that your power may not be “far reaching” enough? How would another 3' work for you? Okay, so it doesn’t sound very dramatic, but sometimes an extra 3' of power cable is exactly what your project needs. Do...