Resistor Kit - 1/4W (500 total)
COM-10969Resistors are a good thing, in fact, they're actually crucial in a lot of circuit designs. The only problem seems to be that …
Beginner Parts Kit
KIT-10003This is the new revision of the kit. We switched to a better trimpot and green LED. This is a kit that gives you all of the b…
Solid State Relay - 40A (3-32V DC Input)
COM-13015A solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state rel…
Thermal Printer
COM-10438This is a thermal printer like you would find on a cash register or adding machine. It will print simple strings passed to it…
Rotary Encoder - 1024 P/R (Quadrature)
COM-11102This 1024 pulse per rotation rotary encoder outputs [gray code](http://en.wikipedia.org/wiki/Gray_code) which you can interpr…
Trimpot 10K with Knob
COM-09806There are lots of trimpots out there. Some are very large, some so small they require a screwdriver. Here at SparkFun, we jus…
Relay SPDT Sealed
COM-00100These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current …
Raspberry Pi - 8GB SD Card
DEV-12998This is an 8GB micro SDHC card that is pre-installed with the NOOBS operating system for the Raspberry Pi. NOOBS is actually …
Surface Transducer - Large
COM-10975Surface transducers give you the awesome power to turn almost any surface into a speaker. They're essentially just a speaker …
microSD USB Reader
COM-13004This is an awesome little microSD USB reader. Just slide your microSD card into the inside of the USB connector, then stick t…
PowerSwitch Tail II
COM-10747Want to control a standard wall outlet device with your micro controller, but don't want to mess with the high voltage wiring…
Piezo Speaker - PC Mount 12mm 2.048kHz
COM-07950This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple m…
Piezo Element
SEN-10293Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty …
Laser Module - Green
COM-09906A very powerful 5mW green laser. Fun, but don't point in anyone's eyes. These units include a momentary power button and two …
Silicon Nitride Igniter - 12V
COM-11694Everyone likes a (carefully controlled) fire! We've met some very ambitious pyros on our mission of enabling makers to keep m…
Thermoelectric Cooler - 40x40mm
COM-10080Thermoelectric coolers (TEC or Peltier) create a temperature differential on each side. One side gets hot and the other side …
Flash Memory - 8GB Mobility Pack
COM-11609This is an 8 gig microSD memory card. It's perfect for massive datalogging without taking up a lot of space. These microSD ca…
Rotary Encoder - Illuminated (RGB)
COM-10982Rotary encoders can be used similarly to potentiometers. The difference being that an encoder has full rotation without limit…
Laser Card Module - Red
COM-00594What is a 'laser card' you ask? It is only the coolest thing to hit Spark Fun Electronics since the Color LCD last week! Don'…
Blower - Squirrel Cage (12V)
COM-11270This DC Blower really moves some air! Pulling about 1Amp @ 12VDC, this blower is rated at 16CFM (although it seems like more …
Surface Transducer - Small
COM-10917Surface transducers give you the awesome power to turn almost any surface into a speaker. Much like our larger surface transd…
MOSFET Power Control Kit
COM-10256This MOSFET power control kit is basically a breakout for a [RFP30N06LE](http://www.sparkfun.com/products/10213) MOSFET. We g…
Rotary Potentiometer - 10k Ohm, Linear
COM-09939An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VC…
Coin Acceptor - Programmable (6 coin types)
COM-11636Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take up to 6 diffe…
Solid State Relay - 8A
COM-10636A solid state relay (SSR) is just what it sounds like; an IC that acts like a mechanical relay. They allow you to control hig…
Rotary Encoder - 200 P/R (Quadrature)
COM-10932This 200 pulse per rotation rotary encoder outputs [gray code](http://en.wikipedia.org/wiki/Gray_code) which you can interpre…
Speaker - PCB Mount
COM-11089This through-hole speaker is great for projects where you need something that sounds better than a piezo buzzer but don't hav…
Rotary Encoder - 200 P/R
COM-10790This 200 pulse per rotation single-output encoder outputs electrical pulses which you can interpret using a microcontroller t…
Slide Pot - Motorized (10k Linear Taper)
COM-10976These motorized sliders are very cool. Each is essentially a standard slide pot which is belt-driven by a small motor. The sl…
Rotary Encoder
COM-09117This is a 12-step rotary encoder with a nice 'clicking' feel. It's breadboard friendly, and has a pretty handy select switch …
Speaker - 0.5W (8 ohm)
COM-09151A small audio speaker that is ideal for radio and amplifier projects and is small enough to fit in robot projects. **Featu…
Coin Acceptor - Programmable (3 coin types)
COM-11719Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take three differe…
Piezo Igniter
COM-10234This piezo igniter can be used for all sorts of applications where you need a spark to make fun things happen. With a large r…
Thin Speaker
COM-10722If you want to get some sound out of your project but have a tight space budget, this is a good way to do it. This 0.25W, 8Oh…
Infrared Remote Control
COM-11759Have you ever needed a cheap way to activate something from across the room? Infrared remotes are still the cheapest way to w…
Super Capacitor - 10F/2.5V
COM-00746Yes you read that correctly - 10Farad capacitor. This small cap can be charged up and then slowly dissipated running an entir…
Rotary Potentiometer - Linear (10k ohm)
COM-09288An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VC…
Electrolytic Decoupling Capacitors - 10uF/25V
COM-00523Low-profile electrolytic decoupling capacitors 10uF/25V. These capacitors are great transient/surge suppressors and work well…
Heating Pad - 5x15cm
COM-11289These DC powered heating pads are perfect for near-body heating applications. They get warm to the touch but not too hot. Sim…
Power Resistor Kit - 10W (25 pack)
KIT-13053Holy Wattage, Batman! This Power Resistor Kit comes with 5 each of 5 different 10 Watt resistor values including 1, 2, 4, 8, …
LED Holder - 5mm
COM-11840These plastic LED holders have a black finish and only need the LED and the holder to be snapped into place easily and effect…
Analog Panel Meter - 0 to 5 VDC
TOL-10285This 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…
Muscle Wire - 0.012" Diameter (1 foot)
COM-11900This 0.012" Muscle Wire® (aka shape memory [Nitinol](http://en.wikipedia.org/wiki/Nickel_titanium)) is a one foot long piece…
Capacitor Ceramic 0.1uF
COM-08375This is a very common 0.1uF capacitor. Used on all sorts of applications to decouple ICs from power supplies. 0.1" spaced lea…
PowerSwitch Tail Kit
COM-12920Want to control a standard wall outlet device with your micro controller, but don't want to mess with the high voltage wiring…
Digital Potentiometer - 10K
COM-10613Potentiometers are incredibly useful, whether you're controlling the volume on your stereo or the 'mood lighting' in your roo…
Muscle Wire - 0.005" Diameter (1 foot)
COM-11899This 0.005" Muscle Wire® (aka shape memory [Nitinol](http://en.wikipedia.org/wiki/Nickel_titanium)) is a one foot long piece…
Heating Pad - 5x10cm
COM-11288These DC powered heating pads are perfect for near-body heating applications. They get warm to the touch but not too hot. Sim…