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Does your Arduino need to control a high voltage item, like a 12V LED strip, while needing to be powered as well? Do you want…
This 2A "laptop brick" supply outputs both 5V and 12VDC and is terminated with a 4-pin ATX connector.
Your 5V system can wield great power with this big, beefy relay board. How does 10A on the NC contacts and 20A on the NO cont…
This is a very simple board that takes a 4-9V input voltage and outputs a selectable 1.8V or 3.3V regulated voltage. All head…
The SparkFun Breadboard Power Supply Stick is a very simple board that takes a 6-12V input voltage and outputs a selectable 5…
Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V re…
The LiPo Fuel Gauge communicates with your project over I2C and an alert pin also tells you when the charge has dropped below…
This 9V battery holder allows your battery to snap in tight and holds it in place, which is great in situations where you don…
This is a high quality power supply manufactured specifically for SparkFun Electronics packs a lot of power; 20W at 5V and 40…
This is a high quality AC to DC 'wall wart' which produces a regulated output of 12VDC at up to 600mA.
The SparkFun Breadboard Power Supply Stick with headers is a simple board that takes a 6-12V input voltage and outputs 5V or …
This is a simple cable that adapts from a USB port to a 5.5x2.1mm barrel connector, center positive. This cable allows the us…
The SparkFun 3.3V Buck Regulator Breakout features the AP3429A from Diodes Inc., a 2A step-down DC-DC converter with an input…
The SparkFun Qwiic Quad Solid State Relay Kit takes one of our favorite solid state relays and lets you place up to four of t…
This simple cable has so many uses! Plug the 9 volt battery clip onto a standard 9V battery and connect the other end to anyt…
The SparkFun 1.8V Buck Regulator Breakout features the AP3429A from Diodes Inc., a 2A step-down DC-DC converter with an input…
This adjustable wall adapter features a rotary switch on the enclosure that allows you to select the voltage.
This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy…
Do you fear that your power may not be "far reaching" enough? How would another 6' work for you? Okay, so it doesn't sound ve…
The 0.6 Watt Volt small solar panel from Voltaic Systems is a lightweight, waterproof, small solar panel designed for 5-7 yea…
These are your standard 1.5V AA alkaline batteries from Panasonic.
This is a 12.5W Micro-USB Power Adapter with the US power prongs (100-240VAC). It's made for use with Raspberry Pi Zero 2 W, …
Two pin JST connector to a 2.1x 5.5mm barrel jack, 6.25 inch long jumper cable. We use this cable to adapt from a wall power …
This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, slidi…
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 per…
These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current …
This is a unique two-cell AA battery holde. The 6" (~150mm) cable has been terminated with a JST-PH connector.
A simple Lithium Ion battery charger for 12.6VDC Li-Ion batteries similar to the one we sell.
This is a portable, slim, lightweight solar panel charger with 10 watts of power and a standard USB connection port.
The 0.3 Watt 2 Volt mini solar panel from Voltaic Systems is a lightweight, waterproof, solar panel designed for 5-7 year out…
The SparkFun Variable Load is a quick to assemble kit that has been designed to allow users to draw a specific amount of curr…
We've taken the classic, portable, rechargeable lithium ion battery pack and tweaked the design to make it amenable to low cu…
This is a classic 9V snap connector terminated with 2-pin polarized Molex connector with 0.1" spacing.
The SparkFun Qwiic Dual Solid State Relay is a power delivery board that allows users to switch two AC loads from a low power…
The KR Sense 45A is a small voltage and current sense breakout board.
CR1225 lithium metal 3V 12mm 47mAh coin cell batteries. Perfect small battery for miniature sensor node applications. Thes…
The 0.3 Watt Volt mini solar panel from Voltaic Systems is a lightweight, waterproof, solar panel designed for 5-7 year outdo…
This is the basic L7805 voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. This fixed reg…
This is an incredibly simple two cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlig…
This is the basic LD1117V33 voltage regulator, a low drop positive regulator with a 3.3V fixed output voltage. This fixed reg…
Simple 4 Cell AA Battery holder with 5" tinned leads, square configuration.
Now for all of your coin cell battery surface mount needs, the 20mm SMD Coin Cell Holder. This holder fits our 20mm Lithium I…
This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, slidi…
This analog panel meter measures DC voltage from 0-5 volts with 2.5% accuracy. It has a clear and easy to read scale and an a…
If you need to charge LiPo batteries, this simple charger will do just that. It is designed to charge single-cell Li-Ion or L…
The Soft Power Switch is a passive, hard on/off switch with software feedback and control. In other words, it's like the on/o…
These are your standard 9 Volt alkaline batteries from Rayovac. Don't even think about trying to recharge these. Use them wit…
The SparkFun Jetson Nano Basic Kit with Battery Pack provides you with all of the essential parts needed to start new project…
