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This is the basic LD1117V33 voltage regulator, a low drop positive regulator with a 3.3V fixed output voltage. This fixed reg…
This is a heavy duty SPST toggle switch - your basic on/off toggle. Rated for 2A at 250V or 4A at 125V. Includes a face plate…
It's the end of the world, and you need a button to press. This is it. A 100mm diameter (outside diameter) dome illuminated p…
Simple SPDT slide switch. Rated at 30V/200mA. The pins have .1" spacing - fits great into a breadboard! Use it as a power swi…
An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VC…
This is the SparkFun MOSFET Power Control Kit, a breakout PTH soldering kit for for the [RFP30N06LE](http://www.sparkfun.com/…
This is the Magnetic Door Switch Set, a small reed switch assembly specifically designed to alert you when doors, drawers, or…
A simple slide potentiometer can go a long way. Rated at 10kOhm and 0.5W. Comes with solder tab connections. The taper profil…
Miniature surface mount momentary button. These are great, low-profile momentary switches. Perfect as a tactile reset switch.…
We use these little buttons on everything! These Miniature Single Pole Single Throw switches have a good click to them and ar…
Gone are the days that you have to worry about silicone weather proofing splitting and breaking on you! These are sealed addr…
This DC Blower really moves some air! Pulling about 1Amp @ 12VDC, this blower is rated at 16CFM (although it seems like more …
If you do anything with electronics, you’re probably already using transistors, but you’re probably using them in large, …
We know this looks like a lot of our other LEDs, but it's not! This is a PTH Addressable RGB LED with a WS2812 control IC bui…
Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins: one for each color a…
These DC powered heating pads are perfect for near-body heating applications. They get warm to the touch but not too hot. Sim…
This simple on-off switch is rated for 20A at 12V but who cares about all that, it looks way awesome. These toggle switches c…
This will be a treat for your ears! The Hamburger Mini Speaker is a 3W economical speaker option for any project needing stan…
This is a translucent silicon rubber button pad with 16 buttons originally inspired by the folks at [monome.org](http://monom…
This little round on/off toggle switch is rated up to 10A at 125VAC and can be panel mounted in a 20mm diameter hole. It'll a…
EL wire, or electroluminescent wire, is a flexible wire coated in phosphor. Apply the appropriate voltage and it lights up! I…
4-digit 7-segment displays are really neat little devices, it's a shame that they can be so cumbersome to control. Well we've…
Thermoelectric coolers (TEC or Peltier) create a temperature differential on each side. One side gets hot and the other side …
This is the SparkFun LED Starter Kit, an ultimate assortment of LEDs packed into a single red box! Now, this isn't a box fill…
Yes you read that correctly - 10Farad capacitor. This small cap can be charged up and then slowly dissipated running an entir…
A small audio speaker that is ideal for radio and amplifier projects and is small enough to fit in robot projects. **Fea…
These are bare addressable 1 meter long 5V RGB LED strips that come packed with 60 WS2812s per meter. As these are bare LED s…
The Spectacle Light Board allows you to add some fairly complex lighting effects to your Spectacle projects in a streamlined …
This 200 pulse per rotation rotary encoder outputs [gray code](http://en.wikipedia.org/wiki/Gray_code) which you can interpre…
This is a small device called a [reed switch](http://en.wikipedia.org/wiki/Reed_switch). When the device is exposed to a magn…
These are addressable 1-meter-long 5V RGB LED strips that come packed with 60 APA102Cs. APA102 LEDs are very similar to WS281…
It's not what project you have in mind that may use a rocket launch switch... The question is what project will you come up w…
We've heard you, and made a number of improvements to our EL Shield. The new version adds zero-crossing optoisolated triacs f…
This is the basic L7805 voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. This fixed reg…
The Spectacle Button Board allows you to add input from buttons, switches or other contact-type sensing devices to your Spect…
Who doesn't love the soft glow of electroluminescence? This EL panel is a flexible plastic sheet which contains a phosphor la…
This is the Circuit Scribe Conductive Ink Pen, a simple looking ball-point pen that allows you to draw circuits instead of so…
This is a perfect choice if you are in need of a heavy duty push button! These metal push buttons are a very tough, small, pa…
This is a 35mm concave momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect fo…
These panel-mounting rocker switches have built-in indicator lights to let you know when your switch is engaged. They mount i…
Check out these big 10mm through-hole LEDs! The opaque epoxy package causes these LEDs to have a soft, diffuse glow. **Fea…
EL inverters allow you to drive EL wires. This particular EL inverter accepts 3V input and outputs 110VAC to drive EL wire. T…
Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take three differe…
This is an 8 gig microSD memory card. It's perfect for massive datalogging without taking up a lot of space. These microSD ca…
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…
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