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SparkFun Breadboard Power Supply USB - 5V/3.3V

Only 10 left! PRT-08376

A very simple breadboard power supply kit that takes power from any USB port and outputs a fuse protected and regulated 3.3V.…

$11.50

Favorited Favorite 15

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Battery Holder 3xAA with Cover and Switch

In stock PRT-10891

This 3xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, slidi…

$1.95

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Relay SPDT Sealed - 20A

In stock COM-10924

These are massive single pole - double throw (SPDT) sealed relays. This means that when current is applied to the coil it thr…

$2.95

Favorited Favorite 11

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Barrel Jack to 2-pin JST

In stock TOL-08734

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 …

$2.95

Favorited Favorite 17

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USB Wall Charger - 5V, 2A

In stock TOL-16893

This USB AC to DC power supply will do 5V at 2A!

$5.95

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DC Barrel Jack Plug - Male

In stock PRT-11476

This barrel jack plug is great for adding a common connector to the end of our wires. This jack is compatible with 5.5mm barr…

$0.95

Favorited Favorite 15

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MintyBoost 3.0 Kit

Only 6 left! KIT-10094

The MintyBoost kit from Adafruit includes all the electronic parts necessary to build your own MintyBoost: a small & simple (…

$19.95

Favorited Favorite 6

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DC/DC Converter - 5V 5W (R-78E)

In stock COM-14453

This R-78E DC/DC Converter is a switching regulator module that has been designed to offer all the advantages of a switching …

$4.95

Favorited Favorite 15

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Power Dock 2 for Onion Omega

17 available DEV-14440

The Power Dock 2 allows you to use any 3.7V LiPo battery to power your Omega and then charge the battery when it’s out of j…

$15.00

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Barrel Jack Extension Cable - M-F (3 ft)

In stock COM-11706

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…

$1.75

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PowerFilm Solar Panel - 50mA@4.8V w/PSA & Kynar

In stock PRT-14799

This PowerFilm Solar Panel is a lightweight and PSA & Kynar coated 50mA@4.8V power solution that can be easily integrated wit…

$5.95

Favorited Favorite 6

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SparkFun ESP32 Thing Power Control Shield

In stock DEV-14155

The SparkFun ESP32 Thing Power Control Shield enables the ESP32 Thing to switch up to 5A of a DC load, providing a wide varie…

$29.95

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Coin Cell Battery - 20mm (CR2025)

In stock PRT-11928

This is the CR2025 20mm coin cell battery. You may be wondering what sets this guy apart from the more common CR2032 coin cel…

$1.95

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ATX Power Supply Connector - Right Angle

In stock PRT-09498

This is a right-angle, 24-pin Molex Mini-Fit Jr.™ connector, commonly used as the power supply connector on [ATX](http://en…

$1.95

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MyoWare Power Shield

34 available DEV-13684

The MyoWare Power Shield is designed to take two standard CR2032 coin cell batteries to power the MyoWare Muscle Sensor. We h…

$4.50

Favorited Favorite 10

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2500 mAh NiMH Battery - AA

In stock PRT-00335

2500mAh 1.2V Nickel Metal Hydride rechargeable 'AA' batteries. [NiMH technology](http://en.wikipedia.org/wiki/Nickel_metal_hy…

$3.25

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Coin Cell Battery Holder - 20mm (SMD)

In stock PRT-11892

Now for all of your coin cell battery surface mount needs, the 20mm SMD Coin Cell Holder. This holder fits our 20mm Lithium I…

$0.95

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Lithium Ion Battery - 1000mAh 7.4v

In stock PRT-11855

This high discharge LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for anyth…

$9.95

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Voltage Regulator - 12V

In stock COM-12766

This is the basic L7812 voltage regulator, a three-terminal positive regulator with a 12V fixed output voltage. This fixed re…

$1.50

Favorited Favorite 11

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Mean Well LED Switching Power Supply - 5VDC, 5A

In stock TOL-14601

This is a 40W single output switching power supply from Mean Well that has been specifically designed to be with LED applicat…

$14.95

Favorited Favorite 6

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Relay SPDT Sealed - 10A (G5LE)

In stock COM-15207

These are high quality, general purpose, Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, an…

$1.95

Favorited Favorite 2

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Relay SPDT Sealed - 10A (G5LE-1 DC3)

Out of stock COM-16888

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…

$1.95

Favorited Favorite 0

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Analog Panel Meter - 0 to 5 VDC

In stock TOL-10285

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…

$4.95

Favorited Favorite 17

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Battery Holder - 18650 (PTH)

Out of stock PRT-13113

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…

$0.75

Favorited Favorite 9

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USB-C Wall Adapter - 5.1V, 3A (Black)

In stock TOL-16272

This is a USB Type-C Power Supply that is compatible with the Raspberry Pi 4.

$4.95

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Mean Well LED Switching Power Supply - 5VDC, 8A

Only 7 left! TOL-14602

This is a 40W single output switching power supply from Mean Well that has been specifically designed to be with LED applicat…

$19.95

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Adam Tech Wall Adapter Cable - Three Terminal (NA)

In stock CAB-14092

These Adam Tech Wall Adapter Cables are terminated with a standard North American (NEMA 5--15P) plug at one end and three ins…

$4.95

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Coin Cell Battery Holder - 12mm (SMD)

24 available PRT-10592

This is the SMD version of [PRT-07948](http://www.sparkfun.com/products/7948), which is the unit we like to use as RTC backup…

$0.95

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SparkFun Fuse Breakout Kit

Only 6 left! KIT-15702

This kit allows you to assembly & use a 250VAC, 500mA inline fuse for your project. Complete with a barrel jack and 5mm pitch…

$4.95

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Fuse 5mm 250V 200mA

In stock COM-10165

This is a glass ferrule type fuse. It fits great with our 5mm fuse clips. The fuse is rated for 250VAC, up to 200mA. Fuses ar…

$0.95

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Resettable Fuse PTC

In stock COM-08357

This is a handy little device that can save your system from smoking. A resettable fuse (also known as a [PTC](http://en.wiki…

$1.25

Favorited Favorite 11

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SparkFun ATX Power Connector Breakout Board

In stock BOB-15035

The ATX power connector breaks out the standard 4-pin computer peripheral port for you 12V & 5V devices from one wall adapter…

$1.95

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DC Barrel Jack Plug - Female

In stock PRT-13126

This female barrel jack plug is great for adding a common connector to the end of wires. This jack is compatible with 5.5x2.1…

$0.95

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Tenergy 5-in-1 Intelligent Battery Cell Meter

In stock TOL-15348

The Tenergy 5-in-1 Intelligent Cell Meter takes you one step closer to becoming an all-seeing and all-powerful battery wizard…

$15.95

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Mean Well Dual Output Switching Power Supply (15VDC, -15VDC, 0.8A)

In stock TOL-14101

This is a 24W dual output switching power supply from Mean Well. This power supply is extremely reliable and able to output 1…

$16.95

Favorited Favorite 9

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Relay Shield v2.0

Only 5 left! DEV-13769

This Relay Shield v2.0 from Evil Mad Scientist is a simple Arduino add-on that gives your Arduino the ability to control a si…

$11.95

Favorited Favorite 10

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ATX Right Angle Connector - PTH 4-pin

Only 13 left! PRT-15700

The ATX power connector breaks out the standard 4-pin computer peripheral port for you 12V & 5V devices from one wall adapter…

$0.50

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Coin Cell Battery Holder - 12mm (PTH)

Only 13 left! PRT-07948

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…

$1.50

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PowerFilm Solar Panel - 200mA@15.4V

Only 3 left! PRT-14797

This PowerFilm Solar Panel is a large, paper thin, and flexible 200mA@15.4V power solution that can be easily integrated with…

$89.95

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iPixel Wall Adapter Cable - Two Terminal (NA)

In stock CAB-14603

These Wall Adapter Cables from iPixel are terminated with a standard NA plug at one end and two insulated spade terminal conn…

$3.95

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Battery Holder - 1xAA (PTH)

In stock PRT-07949

PCB mount clip to hold a AA battery. Sold in single units, you'll need two. These work great for small, low power application…

$0.50

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Fuse 5mm 250V 500mA

32 available COM-10166

This is a glass ferrule type fuse. It fits great with our 5mm fuse clips. The fuse is rated for 250VAC, up to 500mA. Fuses ar…

$0.95

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Battery Holder - 1xAAA (PTH)

In stock PRT-12718

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…

$0.50

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Power Cable - 10A IEC C13 - 2m

In stock TOL-14935

This power cable has a C13 connector on one side and a standard US 3-prong plug on the other. It's rated for 10A at 125V.

$5.95

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750 mAh Alkaline Battery - AAA

In stock PRT-09274

These are your standard 1.5V AAA alkaline batteries from Rayovac. Don't even think about trying to recharge these. Roughly 75…

$0.50

Favorited Favorite 2

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Fuse Clip 5mm

24 available COM-09773

This is a 5mm PTH fuse clip intended to be used with our Glass Fuses. **Note: **These are sold in single units. If you inten…

$0.25

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SparkX Pi-Filter

In stock SPX-15260

It’s 2pm on a Tuesday and you find yourself at the test house with a design failing an emissions test. You quickly determin…

$2.50