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Copper Tape - 5mm (50ft)
Price: $4.76
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Availability: Stocked
Sparkfun Item #: PRT-10561 -

"Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is adhesive-backed, 5mm wide and comes in rolls of 50 feet. Thickness: 3 mil"

Resistor Kit - 1/4W (500 total)
Price: $13.25
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Sparkfun Item #: COM-10969 -

"Resistors are a good thing, in fact, they’re actually crucial in a lot of circuit designs. The only problem seems to be that resistors disappear into thin air. The only way to be sure that you’re gonna have the resistor you need when you need it is to stock up, and keep them organized. We have just the thing! Our new branded resistor kit comes with 25 each of 20 different resistor values (including 0Ω links!). All of these resistors are stapled into a tri-fold pack and...

Copper Tape - Conductive Adhesive, 5mm (50ft)
Price: $6.38
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Sparkfun Item #: PRT-13827 -

"Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is backed by a conductive adhesive, is 5mm wide and comes in rolls of 50 feet. Perfect for more precise projects. Documents: Datasheet MSDS " ...

Heat Shrink Kit
Price: $13.25
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Availability: Stocked
Sparkfun Item #: PRT-09353 -

"We love heat shrink! We use it for all sorts of handy projects. Use it to reinforce connections, protect devices, and electrically isolate exposed solder joints. We worked with a manufacturer to create a kit that we would use: lots of colors, lots of sizes, nothing too long. We specially requested some of the sizes with heat sensitive glue which significantly increases stress relief and water proofing. This kit includes 95 pieces of heat shrink, all of varying colors and sizes, and comes in a...

Circuit Scribe Maker Kit
Price: $151.72
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Availability: Stocked-NoBackOrder
Sparkfun Item #: COM-13255 -

"This is the Circuit Scribe Maker Kit, a massive conductive ink pack with a full range of modules and other items that you can use to create cool circuits. Similar to the Lite Kit, this Circuit Scribe Maker Kit is easy to set-up, choose the modules you want to connect, draw your circuit lines with the included Conductive Ink pen and you’re good to go! With this kit you will be able to work with more advanced output components and sensors. Add sound to your circuits using the Buzzer...

Rotary Potentiometer - Linear (10k ohm)
Price: $1.51
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Sparkfun Item #: COM-09288 -

"An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VCC to an outer pin, GND to the other, and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a variable input from the user! This is a center-tap linear type potentiometer. The outer two pins will always show 10K resistance, the center pin resistance to one of the...

MicroSD Card with Adapter - 16GB (Class 10)
Price: $15.18
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Sparkfun Item #: COM-13833 -

"This is a class 10 16GB microSD memory card, perfect for housing operating systems for single board computers and a multitude of other information. Since this is a class 10 microSD it is capable of transferring data at speeds up to 45MB/s allowing it to have a noticeable increase in performance while running an on-board OS. Each microSD card comes with its own SD adapter for better ease of access. Additionally this microSD card is perfect when used with the Raspberry Pi 3, as its boot card....

Rotary Encoder
Price: $4.92
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Sparkfun Item #: COM-09117 -

"This is a 12-step rotary encoder with a nice ‘clicking’ feel. It’s breadboard friendly, and has a pretty handy select switch (by pushing in on the knob). The encoder is different from a potentiometer in that an encoder has full rotation without limits. The unit outputs gray code so that you can tell how much and in which direction the encoder has been turned. This unit does not come with a knob, but a working knob is related below. Documents: Datasheet Rotary Encoder...

Diode Rectifier - 1A 50V
Price: $0.25
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Availability: Stocked
Sparkfun Item #: COM-08589 -

"This is a simple, very common rectifier diode. Often used for reverse voltage protection, the 1N4001 is a staple for many power, DC to DC step up, and breadboard projects. 1N4001 is rated for up to 1A/50V. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : 1N4001-TPMSCT-ND Documents:Datasheet"

Rotary Switch - 10 Position
Price: $3.22
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Sparkfun Item #: COM-13253 -

"This is a single pole, 10 position rotary switch able to select up to 10 different states in a durable package. Unlike our other rotary switch, this model is much more robust and capable of handling larger currents and voltages. You may find this rotary switch familiar, it’s the same one we trusted in our Decade Resistance Box! With a max voltage rating of 125VAC at 0.3A and a dielectric strength of 250VAC for 1 minute this is a serious little rotary switch capable of working with some...

Copper Tape - Conductive Adhesive, 2" (50ft)
Price: $26.32
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Availability: Stocked
Sparkfun Item #: PRT-13828 -

"Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is backed by a conductive adhesive, is a whopping 2" wide, and comes in rolls of 50 feet. That’s a lot of copper. Documents: Datasheet MSDS " ...

Mini Speaker - PC Mount 12mm 2.048kHz
Price: $3.25
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Sparkfun Item #: COM-07950 -

"This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces. This is not a true piezoelectric speaker but behaves similarly. Instead of a piezoelectric crystal that vibrates with an electric current, this tiny speaker uses an electromagnet to drive a thin metal sheet. That means you need to use some form of alternating current to get sound. The good news is that this speaker is tuned to respond best with...

Schottky Diode
Retail: $0.50
Price: $0.25
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Sparkfun Item #: COM-10926 -

"Schottky diodes are known for their low forward voltage drop and a very fast switching action. This 1A 40V Schottky diode is ideal for use with motor drivers such as the L298N. Documents: Datasheet "

Resistor 10K Ohm 1/6th Watt PTH - 20 pack
Price: $1.58
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Availability: Stocked
Sparkfun Item #: COM-11508 -

"1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 10K resistors make excellent pull-ups, pull-downs, and current limiters. We’ve opted for a new and more breadboard-friendly lead thickness (they’re a bit thicker than our last ones). These resistors come in bags of 20. Documents: Breadboard Lecture Sensor Interfacing Voltage Dividers " ...

Speaker - 0.5W (8 ohm)
Price: $3.35
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Sparkfun Item #: COM-09151 -

"A small audio speaker that is ideal for radio and amplifier projects and is small enough to fit in robot projects. Features: Small Size Power rating: 0.5W Impedance: 8 ohm Dimensions: 50mm diameter, 16mm high, 28mm base diameter"

SparkFun MOSFET Power Control Kit
Price: $6.58
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Sparkfun Item #: COM-12959 -

"This is the SparkFun MOSFET Power Control Kit, a breakout PTH soldering kit for for the RFP30N06LE N-Channel MOSFET. This kit is extremely simple to assemble with only 10 pins to solder. If you are looking for a little more control over projects that require a little more power than normal but need a better way than your breadboard, this kit is perfect for you Included in each kit is a SparkFun MOSFET Power Control PCB, two screw terminals (one 2-pin and one 3-pin), a 10k resistor, and a...

Circuit Scribe Conductive Ink Pen
Price: $34.16
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Sparkfun Item #: COM-13254 -

"This is the Circuit Scribe Conductive Ink Pen, a simple looking ball-point pen that allows you to draw circuits instead of soldering or wiring them to a breadboard. This is the same pen found in the Circuit Scribe Lite Kit just without the LED module and batteries, we understand that you may just need to draw out a quick circuit with your own parts or need a replacement pen. With Circuit Scribe you can draw exactly what you want, no wires or breadboard required. You can build a circuit with...

Alligator Clip
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Price: $0.82
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Sparkfun Item #: PRT-00111 -

"A staple for the electrical engineer. I can’t tell you how many times I’ve been one clip short! Note: Sold as a single unit."

Capacitor Ceramic 0.1uF
Retail: $0.50
Price: $0.42
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Sparkfun Item #: COM-08375 -

"This is a very common 0.1uF capacitor. Used on all sorts of applications to decouple ICs from power supplies. 0.1" spaced leads make this a perfect candidate for breadboarding and perf boarding. Rated at 50V. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : 399-4266-ND Documents:Power Supply Lecture Sold in single pieces"

Relay SPDT Sealed
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Price: $3.67
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Sparkfun Item #: COM-00100 -

"These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay’s coil is rated up to 12V, with a minimum switching voltage of 5V. The contacts are rated up to 5A (@250VAC, 30VDC). Note: In the Datasheet below there is a pin layout listed as “Bottom View.” Be aware, this pin layout is actually the top-down view NOT bottom-up. Features: 5V DC SPDT Relay Rated up to 5A Fully Sealed Documents:...

Silver Metal Knob - 14x24mm
Price: $2.50
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Availability: Stocked
Sparkfun Item #: COM-10001 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft. The knob slides onto the potentiometer and holds tightly with a strong friction fit. The main body of these knobs is metal with a plastic insert. The outside is knurled for precise adjustment. Dimensions: 14mm high 24mm diameter "

IC Test Clip - SOIC 8-Pin
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Price: $29.56
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Sparkfun Item #: COM-13153 -

"This is an IC Test Clip for 8-pin small outline integrated circuits (SOIC). This test clip assures a secure connection to all chip leads on an 8-pin SMD SOIC and provides hands-free testing. On this test clip you will find two sets of gold plated contacts, upper contacts to attach wiring and lower contacts for an 8-pin IC. Simply place your choice of IC in the lower contacts and attach female terminated jumper wires to the 0.1" spaced upper contacts and you are ready to start testing!...

SparkFun Beginner Parts Kit
Price: $33.25
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Availability: Stocked-NoBackOrder
Sparkfun Item #: KIT-10003 -

"This 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 basic thru-hole components you will need to get started playing with embedded projects. These are the ‘bubble gum’ parts that we regularly use. A good starter assortment of caps, ICs, regulators, diodes, and good-for-blinky LEDs. Be sure to look through our tutorials for some great projects. This assortment of parts makes a great gift for beginner and...

Resistor 1K Ohm 1/4th Watt PTH - 20 pack
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Price: $1.55
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Sparkfun Item #: COM-13760 -

"These are ¼th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 1K Ohm resistors make excellent pull-ups, pull-downs, and current limiters. Note: Although these come in bags marked with a quantity of 25, they don’t always contain 25. So we’d rather call it 20 and hope that you get extras. Documents: Breadboard Lecture Sensor Interfacing Voltage Dividers " ...

GTE Knob - Small
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Price: $1.55
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Sparkfun Item #: COM-11951 -

"Do you need that extra push over the cliff? The Small sized GTE (Goes To Eleven) Knob can fit onto potentiometers with a 6mm wide shaft thanks to a brass insert with a set screw. We know that most of you are playing at ten, but with the GTE Knob you can go… one louder. Note: It goes to eleven. Dimensions: 23.6 x 14.2mm Documents: Dimensional Drawing Product Video " ...

Piezo Element
Price: $2.51
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Sparkfun Item #: SEN-10293 -

"Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output. They can also be used for a very small audio transducer such as a buzzer. Documents: Datasheet (7BB-20-6L0) Arduino Tutorial " ...

Digital Potentiometer - 10K
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Price: $2.45
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Sparkfun Item #: COM-10613 -

"Potentiometers are incredibly useful, whether you’re controlling the volume on your stereo or the ‘mood lighting’ in your room. The problem with traditional potentiometers is the fact that your microcontroller doesn’t have an easy way to interface with them. Digital Potentiometers solve that problem by allowing you to control a voltage splitter with digital signals. Wire it up just like a potentiometer and use serial signals to ‘turn the knob.’ Another...

Thin Speaker
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Price: $1.55
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Sparkfun Item #: COM-10722 -

"If 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, 8Ohm speaker is only 40mm in diameter and just over 4mm thick, the same kind you might find in one of those “talking greeting cards”. Documents: Datasheet Dimensional Drawing " ...

SparkFun Capacitor Kit
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Price: $11.33
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Sparkfun Item #: KIT-13698 -

"This is a kit that provides you with a basic assortment of capacitors to start or continue your electronics tinkering. No more looking under your desk to see if you can find a spare capacitor you might have dropped a year ago. With this kit you get over 100 of the most popular capacitors. As a bonus they come in a box with a sticker to help you identify which capacitor is which. This assortment of capacitors makes a great gift for beginner and advanced electronics nerds at any time of year!...

Analog Panel Meter - 0 to 5 VDC
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Price: $8.07
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Sparkfun Item #: 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 adjustable dial. These come in handy for measuring the output of sensors with 5V ranges. The face of the meter is 45x45mm overall. The mounting hole should be 38mm. The overall depth of the meter is 35mm. Documents: Product Sheet "

Slip Ring - 6 Wire (2A)
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Price: $24.38
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Sparkfun Item #: ROB-13064 -

"This is a 6 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection. This particular slip ring provides you with a compact body with gold-on-gold alloy fiber brush to plated ring contacts inside. Each Slip ring is capable of handling a...

Rotary Encoder - 200 P/R
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Price: $50.96
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Sparkfun Item #: COM-10790 -

"This 200 pulse per rotation single-output encoder outputs electrical pulses which you can interpret using a microcontroller to find the position of the input shaft. This allows you to add feedback to motor control systems. Encoders of this kind are often used in balancing robots and dead reckoning navigation. The encoder comes with a set screw coupler which will attach to any 4mm shaft. Features: Resolution: 200 Pulse/Rotation Input Voltage: 5 - 12VDC Maximum Rotating Speed: 5000rpm Allowable...

Copper Tape - 2" (50ft)
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Price: $24.38
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Sparkfun Item #: PRT-11081 -

"Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is adhesive-backed, a whopping 2" wide and comes in rolls of 50 feet. That’s a lot of copper. Thickness: 3 mil Documents: Datasheet Composition Product Video " ...

Rotary Potentiometer - 10k Ohm, Linear
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Price: $1.55
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Sparkfun Item #: COM-09939 -

"An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VCC to an outer pin, GND to the other, and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a variable input from the user! This pot has a ¼" mounting diameter and has a 10K linear taper. Check the datasheet for dimensional drawings. Documents: Datasheet How...

Diode Small Signal - 1N4148
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Price: $0.24
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Sparkfun Item #: COM-08588 -

"This is a very common signal diode - 1N4148. Use this for signals up to 200mA of current. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : 1N4148FS-ND Documents: Datasheet "

SparkFun RS232 Shifter - SMD
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Price: $22.75
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Sparkfun Item #: PRT-00449 -

"The smallest and easiest to use serial conversion circuit on the market! This board has one purpose in life - to convert RS232 to TTL and vice versa (TX and RX). This will allow a microcontroller to communicate with a computer. Shifter SMD is powered from the target application and can run at any voltage! That’s right - power the board at 5V and the unit will convert RS232 to 5V TTL. Power the board at 2.8V and the Shifter board will convert RS232 to 2.8V CMOS TTL. Includes two...

Black Chicken Head Knob - 14x20mm
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Price: $1.55
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Sparkfun Item #: COM-10000 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. The main body of these knobs have a 14mm, but extend to 32mm overall. They also have a brass insert for a tighter fit with the shaft. Dimensions: 14mm high 20mm diameter 6mm depth for shaft "

Heat Sink Compound
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Retail: $4.95
Price: $3.18
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Sparkfun Item #: PRT-09599 -

"This is a 5g syringe of white heatsink compound (aka thermal grease, thermal paste, thermal goo). Use this whenever you’re connecting a component to a heatsink, it’ll really help to dissipate even more potentially damaging heat. This compound is composed of 50% silicone, 20% carbon, and 30% metal oxide. It has a thermal conductivity of 1.172 W/(mK), which should be plenty for voltage regulators, MOSFETs, motor drivers, audio amplifiers, etc. Features: Color: White Thermal...

Heating Pad - 5x15cm
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Price: $8.07
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Sparkfun Item #: COM-11289 -

"These DC powered heating pads are perfect for near-body heating applications. They get warm to the touch but not too hot. Simply apply 5VDC to the wire leads and within minutes, the pad will begin to warm up. These heating pads are constructed using a mesh of Polyester filament and Micro Metal Conductive Fiber folded into a protective Polyimide Film. The fact that these are low power, flexible and draw little power makes them ideal for things like hand-warmers and other heated garments. Maybe...

Trimpot 10K with Knob
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Price: $1.55
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Sparkfun Item #: COM-09806 -

"There are lots of trimpots out there. Some are very large, some so small they require a screwdriver. Here at SparkFun, we just needed a simple one that worked. This 10K trimmable potentiometer has a small knob built right in and it’s breadboard friendly to boot! Perfect for your next LCD contrast adjuster, opamp setting, or volume level. This model # is TSR-3386U within the datasheet. Documents: Datasheet (Note pins are in a single row, as shown in the pictures) " ...

Interface Cable - SMA Female to SMA Male (25cm)
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Price: $8.07
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Sparkfun Item #: WRL-12861 -

"This is a basic SMA (Sub-Miniature A) male to female connector cable. Each cable is 25cm (9.8") long and has a 50Ω impedance that can handle frequencies up to 17 GHz. The SMA connectors at each end are small enough for most consumer GPS, cellular, and other RF applications and they use a threaded housing to create strong mechanical connections. These work well for mounting an antenna to the outside of an enclosure, while keeping the electronics neatly inside. Note: If you are looking for...

Black Knob - 15x19mm
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Price: $1.55
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Sparkfun Item #: COM-09998 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. Dimensions: 15mm high 19mm diameter "

Resistor 100 Ohm 1/4th Watt PTH - 20 pack
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Price: $1.55
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Sparkfun Item #: COM-13761 -

"These are ¼th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 100 Ohm resistors make excellent pull-ups, pull-downs, and current limiters. Note: Although these come in bags marked with a quantity of 25, they don’t always contain 25. So we’d rather call it 20 and hope that you get extras. Documents: Breadboard Lecture Sensor Interfacing Voltage Dividers " ...

Surface Transducer - Small
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Price: $16.31
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Sparkfun Item #: COM-10917 -

"Surface transducers give you the awesome power to turn almost any surface into a speaker. Much like our larger surface transducer, this is essentially just a speaker except instead of a cone, the coil is attached to a pad that conducts the vibration into whatever you press it against. You can hook it up to an audio source and press it against the nearest table, wall or cardboard box. You can even put it against your head and play music directly into your skull (the ultimate surround sound)....

Clear Plastic Knob
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Price: $1.55
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Sparkfun Item #: COM-10597 -

"This plastic knob accepts a 6mm shaft and has a 15mm outer diameter. They simple press-fit onto a shaft. These are clear so that they can be used with our illuminated rotary encoders. Documents: Dimensional Drawing "

Black Metal Knob - 14x24mm
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Price: $2.45
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Sparkfun Item #: COM-10002 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft. The knob slides onto the potentiometer and holds tightly with a strong friction fit. The main body of these knobs is metal with a plastic insert. The outside is knurled for precise adjustment. Dimensions: 14mm high 24mm diameter "

SparkFun FM Tuner Basic Breakout - Si4703
Price: $31.71
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Sparkfun Item #: BOB-11083 -

"This breakout for the Silicon Laboratories Si4703 FM tuner chip is a little more stripped down than our FM Tuner Evaluation Board. If your project already has an amp and just needs a full-featured FM tuner, this is the board for you. Beyond being a simple FM radio, the Si4703 is also capable of detecting and processing both Radio Data Service (RDS) and Radio Broadcast Data Service (RBDS) information. The Si4703 even does a very good job of filtering and carrier detection. It also enables data...

Flexinol - 0.005" Diameter (1 foot)
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Price: $3.18
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Sparkfun Item #: COM-12095 -

"This 0.005" Flexinol® Actuator Wires (aka shape memory Nitinol) is a one foot long piece of nickel-titanium alloy that can flex and contract when a specific amount of heat or current is applied to it and are made specifically for linear actuators to replace small motors or solenoids. If you are asking yourself “What sorcery is this?!” We assure you, this isn’t magic, it’s just simple science thanks to shape memory and a change between the wires weaker, low...