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CR1225 lithium metal 3V 12mm 47mAh coin cell batteries. Perfect small battery for miniature sensor node applications. Thes…
This is the basic LD1117V33 voltage regulator, a low drop positive regulator with a 3.3V fixed output voltage. This fixed reg…
2500mAh 1.2V Nickel Metal Hydride rechargeable 'AA' batteries. [NiMH technology](http://en.wikipedia.org/wiki/Nickel_metal_hy…
This is the basic L7805 voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. This fixed reg…
The 0.3 Watt Volt mini solar panel from Voltaic Systems is a lightweight, waterproof, solar panel designed for 5-7 year outdo…
This 3xAA battery holder with JST connector puts a nice finishing touch on your battery powered project.
The MI:power board adds portability to your project. A buzzer and 3V coin cell holder is connected to the 3V, GND and P0 conn…
The KR Sense 45A is a small voltage and current sense breakout board.
This female barrel jack plug is great for adding a common connector to the end of wires. This jack is compatible with 5.5x2.1…
10Ah capacity & multiple USB options make this a great option for mobile USB power on your next project.
The 4-Bay T4s Intelligent Universal Charger from Tenergy is an automatic smart charger compatible with almost all types of re…
These are your standard 9 Volt alkaline batteries from Rayovac. Don't even think about trying to recharge these. Use them wit…
This high discharge LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for anyth…
The BPW34 is a tiny, general purpose [PiN photodiode](http://en.wikipedia.org/wiki/PIN_diode). This photodiode has a ton of u…
The 0.6 Watt Volt small solar panel from Voltaic Systems is a lightweight, waterproof, small solar panel designed for 5-7 yea…
Basic 20mm coin cell holder. Posts can be inserted into 0.1" perf board! Holds the common CR2032 type batteries.
These are massive single pole - double throw (SPDT) sealed relays. This means that when current is applied to the coil it thr…
This relay's coil is rated up to 3V, with a maximum switching voltage of 250VAC, 125VDC. The contacts are rated up to 10A (@1…
This is an incredibly simple two cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlig…
The ATX power connector breaks out the standard 4-pin computer peripheral port for you 12V & 5V devices from one wall adapter…
The 0.3 Watt 2 Volt mini solar panel from Voltaic Systems is a lightweight, waterproof, solar panel designed for 5-7 year out…
This is a USB Type-C Power Supply that is compatible with the Raspberry Pi 4.
This is a PCB mount clip to hold a 18650 Lithium Ion Cell battery. Each battery holder is sold in single units, you'll need t…
The KR Sense 90A is a small voltage and current sense breakout board.
This is a breakout board for our non-isolated, [6A DC-to-DC Converter Module](http://www.sparkfun.com/commerce/product_info.p…
This is the LM317TG voltage regulator, a three-terminal positive regulator with a 1.2V to 37V adjustable output voltage. This…
This is a simple 48W (8V DC, 6A) power supply, designed for use with the Raspberry Pi Build HAT.
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…
Now for all of your coin cell battery surface mount needs, the 20mm SMD Coin Cell Holder. This holder fits our 20mm Lithium I…
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 SparkFun Power Supply Sample Kit provides you with a sampling of the power supplies that we offer to power your next proj…
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 ve…
These are your standard 1.5V AA alkaline batteries from Panasonic.
This is the basic L7812 voltage regulator, a three-terminal positive regulator with a 12V fixed output voltage. This fixed re…
Our RedBoards are great. But don't they sometimes seem a little **_BIG_**?! Enter **smôl**, a new range of boards which a…
This is the CR2025 20mm coin cell battery. You may be wondering what sets this guy apart from the more common CR2032 coin cel…
This 3xAA battery holder with bare wire leads puts a nice finishing touch on your battery powered project.
This is a right-angle, 24-pin Molex Mini-Fit Jr.™ connector, commonly used as the power supply connector on [ATX](http://en…
A simple Lead-acid battery charger for 13.8VDC Lead-acid batteries. It comes in a robust metal enclosure (IP68 rated) with a …
This is a 3-pack of international wall adapter sockets for the UK/EU/AU.
PCB mount clip to hold a AAA battery. Sold in single units, you'll need two for each battery. These work great for small, low…
This USB AC to DC power supply will do 5V at 2A!
Use this high-strength acrylic gasket to attach the 1.2W panels from Voltaic Systems to an enclosure.
This is a through-hole 12mm coin cell battery holder. It's the unit we like to use as RTC backup and SRAM backup for GPS unit…
A 2 x AAA battery box with a JST connector for powering the micro:bit.
These are your standard 1.5V AAA alkaline batteries from Energizer.
A 2 x AAA battery box with a JST connector and on/off switch for powering the micro:bit.
