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27mm Piezo

27mm (just over an inch for you Americans) circular brass-base piezo electric element, comes with 6" leads soldered, stripped, tinned, and ready to go. Make fantastic pickups for instruments, because although they bend when electricity is applied, they also make electricity when bend is applied. Commonly used for acoustic instrument and drum machine pickups. These won't make noise without an external signal. If that's what you want, look for an "active" buzzer.

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5mm RGB Red/Green/Blue LED

Three for one, a red, green, and blue LED, all in one familiar 5mm package. Operating specs are as follows:

Colors:
Red: 620-630nm
Green: 515-525nm
Blue: 460-470nm
Voltages:
Red, 1.8-2.2V
Green: 3.0-3.4V
Blue: 3.0-3.4V
Max current:
Each: 10mA, max 50mW

See alternate photos for pinout.

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5v Active Buzzer

5v active buzzer, 3.5-5.5v in, a very audible 2.3khz tone out. "Active" refers to that the circuitry for the signal is integral, you need only feed it DC voltage and it'll do the rest.

Fantastic for any device or skill game requiring a highly audible alarm. The tone is quite high, and can be muted by the careful application of tape to the hole on top. See alternate pictures for technical details.

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7-Segment 3-Digit LED Display, 0.36", Green

Nice basic LED display. Available in common anode or cathode.

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Ball Bearings, 681, 1x3x1 mm

These bearings are unbelievably small, like seriously, wow. Their inner diameter is only 1mm, outer is 3mm, and they're only 1mm thick. Unshielded.

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Ball Bearings, R2ZZ, 1/8" x 3/8"

These double-shielded deep-groove ball bearings are made of high-strength bearing steel, and come pre-greased and ready to add smooth rotary motion to any of your DIY projects including model cars, skates, planes, robots, and much more. Their dimensions are simple to work with, since their inside diameter is 1/8", their outside is 3/8", and their thickness is 5/32". Deep-grove design allows high radial and axial loads, even at proportionally high RPMs of 5,000+

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Ball Bearings, R4AZZ, 1/4" x 3/4"

These double-shielded deep-groove ball bearings are made of high-strength bearing steel, and come pre-greased and ready to add smooth rotary motion to any of your DIY projects including model cars, skates, planes, robots, and much more. Their dimensions are simple to work with, since their inside diameter is 1/4", their outside is 3/4", and their thickness is 9/32". Deep-grove design allows high radial and axial loads, even at proportionally high RPMs of 5,000+

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Ball Bearings, R8ZZ 1/2" x 1 1/8"

Nice big bearings for all kinds of stuff. Fits nicely on a half inch shaft, and in a 1.125 inch hole. 5/16ths thick.

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Battery Holder, 2x LR44/AG13

Handy little holder for two LR44 or AG13 size batteries. Features easy to solder gold plated tabs.

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Bridge Rectifier, 1000V, 1A

Nice basic DIP silicone bridge rectifier. Operation is very simple: two pins are marked with ~, that's where the AC goes in, and then there's a + and a - where the DC comes out. Note, the power these can handle is reliant on heat dissipation, so it's likely these cannot handle 1000V at 1A without melting, but 6V at 1A or 1000V at 5mA will work fine.

Part number is DB107, full datasheets can be found here.

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Compass, 20mm

Tiny little 20mm magnetic compasses, useful for finding magnetic north in emergency situations, or detecting tiny magnetic fluxes, such as home-made galvanometers, or detecting the polarity of a magnet.

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Cree Sk68 3W LED Flashlight

Do you ever get tired of those LED flashlights you find in checkout lines, that have no appreciable optics, no power supply circuit, run dim or flickery after the first few hours of use, and require three AAA batteries in that funny plastic holder? We do!

In lieu of this sad state of LED flashlight affairs, we sourced a reliable basic flashlight, made with reputable parts, operating with one super-bright diode, and one AA battery. In doing so, we picked up some bonus features as well!

•Cree® Q5 White LED Diode
•Rated at 3W, and 250 Lumens
•Efficient Switching Power Supply
•JUST ONE AA or 18650 Lithium Battery
•Durable Aluminum Case
•Adjustable Focus PMMA Optics, Capable of Floodlight or Beam Mode
•Three Settings, Full Bright, Half Bright, and Strobe
•O-Ring Seals for Water Resistance

Fantastic gift for any outdoors type, or just to keep on the bedside table. Use our Glow Keychains to find them at night!

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Cree SK68 3W UV 395nm Flashlight

Same as our excellent white SK68 flashlights, but with a powerful 395NM UV beam, perfect for charging all of your glow projects, and all of our glow products!

•Cree® Q5 UV LED Diode
•Rated at 3W of 395NM light
•Efficient Switching Power Supply
•JUST ONE AA or 14500 Lithium Battery
•Durable Aluminum Case
•Adjustable Focus PMMA Optics, Capable of Floodlight or Beam Mode
•O-Ring Seals for Water Resistance

Fantastic gift for any enthusiast of forensic sciences, fluorescence, glow products, or any other sector of science or art requiring portable, powerful, UV Light!

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Glow Pebbles, Purple, 10pcs

The package of a standard 5mm LED, but, a set of two, the clear one of which emits 940nm infrared, the black one acts as a photodiode for the same wavelength.

These components in tandem can be used as an optical interrupt gap, such as an RPM counter, a limit switch, or even elementary IR remote control. Operating specs are as follows:

Power: 0.15w
Receiving Angle: 40 degrees
Forward Voltage: 1.3-1.4v for emitter, 1.1-1.4v for photodiode
Wavelength: 940nm
Maximum power: 70 mw
Maximum forward current: 30ma
Maximum reverse voltage: 5v
Maximum pulse current peak: 75ma


Each purchased unit will come with one emitter and one receiver.

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Graphite Powder, 3/4oz Bottle

Fine synthetic graphite powder, for use as a dry lubricant anywhere oils are ill suited to the task. Good for extremely low friction or high temperature settings. Also works well for locks and similar mechanisms.

Sold here in a 3/4oz dispenser bottle. For larger quantities, see the chemical and element division.

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Hall Effect Sensor, Y3144

The Y3144 (interchangeable with A3144) is a good basic starter hall effect sensor, and has an integrated switch to make the output digital, so either on, or off. It can run anywhere from 4.5-30 volts, and can handle enough current to run a transistor or even an LED.

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LED, 395nm UV, 5mm 30° Beam

Classic 5mm LED package, emitting 395nm UV for all your blacklight needs. Ratings as follows (in no particular order):

•Forward Voltage:3.0-3.4
•Max Current: 30mA
•Package: 5mm, 30° Beam
•Really, what else can I say about an LED? I think we've all seen them.

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Micro DC Motor, 4x8mm, With Weight

These are some of the smallest motors of any kind available today, and are small, quiet, durable, and efficient!

Specifications are as follows, physical properties were measured and confirmed by us, electrical properties are from our supplier and are not tested.

Note: Motors are available with or without the eccentric weight that makes them shake. These motors DO have the weights, go here for motors without, or here for sealed pancake-type vibration motors.

•Rated Speed(RPM): 12,000 ±, 2,500
•Minimum Rated Torque: 2.68 g/cm
•Starting Current: 90mA
•Max Rated Current: 70mA
•1.3-3v DC
•Diameter: 4mm ± 0.1
•Length: 9mm Including Bearing Case
•Shaft Diameter: 0.7mm
•Shaft Length: 2mm ± 0.25mm
•Lead Length: 20mm
•Motor Weight: 0.5g Without Weight/Boot
•Motor Design: Brushed Coreless

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Micro DC Motor, 4x8mm, Without Weight

These are some of the smallest motors of any kind available today, and are small, quiet, durable, and efficient!

Specifications are as follows, physical properties were measured and confirmed by us, electrical properties are from our supplier and are not tested.

Note: Motors are available with or without the eccentric weight that makes them shake. These motors DO NOT have the weights, go here for motors with, or here for sealed pancake-type vibration motors.

•Rated Speed(RPM): 12,000 ±, 2,500
•Minimum Rated Torque: 2.68 g/cm
•Starting Current: 90mA
•Max Rated Current: 70mA
•1.3-3v DC
•Diameter: 4mm ± 0.1
•Length: 9mm Including Bearing Case
•Shaft Diameter: 0.7mm
•Shaft Length: 2mm ± 0.25mm
•Lead Length: 20mm
•Motor Weight: 0.5g Without Weight/Boot
•Motor Design: Brushed Coreless

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Microswitch, 1A 125V

These basic microswitches are the perfect switch for your robot projects where you might need an impact sensor or a trigger, they flip at about 20 grams of force, and that can be lowered with a longer lever.

The term "Microswitch" doesn't actually refer to the physical size of the switch, but the fact that the action is very sensitive, and is definitively "on" or "off", not squishy and bad.

Physical dimensions and schematic are available, rated for 1A at 125VAC, so they'll easily handle any low power applications.

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Mini Breadboard, SYB-170

The SYB-170 is a very basic (and very small) temporary prototyping board. It features two rows of 5x17 holes, every row of 5 being connected together.

Most likely to be useful you'll need some jumper cables as well, we're working on it, we promise. Fits Arduino Pro Mini and Nano type boards quite well, and so far as basic prototyping capability, can't be beat.

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Pancake Vibration Motor, 10mm x 3mm

These motors are an alternative to "conventional" vibration motors, providing more efficient vibration action in a sealed package. Not nearly as useful for other things because there is no output shaft, but much better at shaking up your projects!

•1.5-3V DC Operation
•120mA max
•Adhesive backed

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Photoresistor, 5mm

A nice basic cadmium-sulfide photoresistor, used in detecting light. Specs are as follows.

•Full-Sunlight Resistance: <200Ω
•Full-Dark Resistance:>2MΩ
•Max power dissipation:50mW
•Max voltage: 100v

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Pixie Radio Kit

See our Pixie Radio Info Page for more on this economical little 40m radio.

This kit comes with everything you need to get started, including:

•PCB and all necessary components
•7.030mhz and 7.023mhz crystals
•9v Battery Adapter
•Compatible 3.5mm Earbuds

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Prototyping PCB

Printed circuit boards with rows of plated holes and pads, for prototyping or low-volume applications where custom boards are not economically viable. Hole pitch is 2.54mm or 10 per inch, and hole diameter is 1mm, or 0.039". Rows and columns are marked accordingly with letters and numbers, there are power tabs on the ends of the boards, and non-plated 2mm mounting holes in all four corners. 2x8 boards are gold plated, but all perform equally. If we're out of a certain size, we'll contact you to arrange an alternative.

Available in:
2x8cm with 6x28 holes and 4 tabs
4x6cm with 14x20 holes and 12 tabs
3x7cm with 10x24 holes and 8 tabs
5x7cm with 18x24 holes and 16 tabs

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Reed Switch, Low Power

These tiny little reed switches are perfect for magnetic detectors of all sorts, and they're remarkably economical. Physical dimensions are 2x14mm, 14mm leads, 42mm total length. Not recommended for over 30v or 250mw. Best used as a low-power sensor instead of a switch, could be used with a transistor or relay for higher power switching.

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Silicone Super-Flexible High Temperature Wire

This silicone wire is capable of incredible flexibility due to having a large number of very fine internal tin-plated copper strands, as well as having extremely soft, flexible silicone insulation, which also means this wire is rated for 600v, tested to 2kv, and performs comfortably in temperatures from -76°f to 390°!

The flexibility, temperature, and voltage ratings don't differ between gauges, but for everything that does, refer to the table below!

Contact us if you're interested in 100+ft quantities or custom colors.

Gauge Stranding Max Amps Diameter Resistance/1000ft
30awg 11x40awg 800mA Ø1.2mm 101Ω
24awg 40x40awg 5A Ø1.6mm 30Ω
18awg 150x40awg 22A Ø2.3mm 12Ω

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Solar Panel, 4V, 80mm x 17mm

We got sick of our old silicon cells that were impossible to solder or use for anything, so we stocked these durable epoxy-sealed miniature solar panels instead!

•4V at 25mA in full sunlight
•80mm x 17mm x 3mm ± 0.5mm thick
•4.5g weight
•EASY TO SOLDER COPPER PADS

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Super Capacitors, 2.7V 1.5F

At the rated 2.7V and 1.5 farads (yes, full farads), these capacitors pack about 5.4 joules at full charge, which is equal to 5.4 watts for one second, or a watt for 5.4 seconds, or a milliwatt for one and a half hours. The low voltage limits their usage, but single cells will run an LED no problem, and they're easy to hook in series or parallel for more volts or farads, respectively. For comparison, an LR44 has about 3 times the energy storage, but these capacitors are rechargeable thousands of times, and contain no hazardous chemicals.

Physical dimensions are only 8.5x12.5mm with 20mm leads, and weight is just under a gram. Longer lead indicates the positive pole, and a stripe on the casing indicates negative.

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Super Capacitors, 2.7V 100F, Factory Seconds

These capacitors are, unfortunately, plagued by physical damage, but their operating specifications still hold true. Until you witness the power of 100 full farads by melting paper clips in seconds, or keeping an LED lit for days on end, don't judge by the dents or dings! Also they're like, super cheap. Rated for 2.7v at 100 farads. Case color may vary.

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Super Capacitors, 5.5V 1.5F

Modern EDLC supercapacitors with the magic of porous carbon electrodes, these particular models are rated for use at 5.5V and 1.5F, that's right, full farads!

Because of their higher voltage, they can be set up to run LEDs for a much longer time than our single-cell 2.7V caps.

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Thermocouple Thermometer, TM 902C, -50°C to 1300°C

Handy little thermocouple thermometer, just add one 9v battery, switch on. Responsive and accurate.

•K-type probe included, standard plug, 1m/3ft cable
•Requires one(1) 9v Battery
•Accurate to within ±1°C between 0°C and 1300°C
•Accurate to within ±4°C from 0°C to -50°C

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Thermoelectric Module, TEC1-12706

The infamous Peltier/Seebeck effect, amplified by way of modern materials, in a tidy 40mm*40mm*4mm alumina ceramic package.

Max Voltage: 16v
Max Amperage: 6a
Max Watts: 60w
Max Hot-Side Temperature: 130°c, 266°f
Max Temperature Difference: 75°c, 160°f
Life Expectancy: 200,000 Hours

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Thermometer, 20mm

These tiny little thermometers have a range of 0-120° Fahrenheit, which is basically the livable range of humans, so should prove quite useful anytime you have any doubt about what temperature it is, and you're also alive. Available in Celsius AND Fahrenheit!

Their small size (20mm, almost exactly the diameter of a US penny, and 7.5mm thick) allows them to be used in a wide range of scenarios, anything from leaving one on the outside window sill to check the temperature, to craft projects, to attaching one to your watch and feeling like Inspector Gadget.

These are water resistant, but they are not waterproof, so will not stand submersion. Some light sealing with lacquer or wax should do the trick if you're interested in using them underwater for aquarium heat tracking or similar cooling system

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Thermometer, TP101, -50°C to 300°C

Nice basic little thermometer, not technically a thermocouple, but accurate, and covers a wide range of useful temperatures. Features:

• Stainless steel probe
• Dual-Mode, Fahrenheit or Celsius
• Powered by 1 x LR44/AG13 Battery, Included
• Easy-to-Read LCD Display
• Max/Min and Hold modes

To be completely honest, we bought it for use with plastics and hot-melt adhesives. With its' high temperature capabilities, makes a great scientific thermometer as well as being food-grade and safe for kitchen use!

Comes in the original manufacturer's padded tube with cap, lanyard, and manual.

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Toggle Switch, 6A 125VAC, SPDT

Good basic toggle switches, capable of switching 6A at 125VAC, or 24VDC.

Fits neatly in 1/4" hole, comes with all mounting hardware.

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Touch On/Off Switch Controller

This little control box turns lights on and off by a human touch to a dedicated input. Schematics for proper use are molded into the case.

IMPORTANT NOTE: Respect electricity, it CAN kill you. Only ever work on appliances while they are unplugged, and do not plug them in until it is safely and completely reassembled.

Operating specs as follows:

Input voltage: 120/240VAC, 50/60hz
Output Power Max:1A, 120W


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Transister, IRF3205, Power MOSFET

The IRF3205 is a powerful TO-220 package MOSFET capable of dissipating over 50 watts of power.

Datasheet Here, property of International Rectifier.

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Transistor, 2N3904, NPN

A good basic NPN transistor, capable of 625mw and 300x gain. All in all, a good introduction to transistors as amplifiers or electronic switches. Datasheet here, property of Fairchild Semiconductor.

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Transistor, 2N3906, PNP

A good basic PNP transistor, capable of 625mw and 300x gain. All in all, a good introduction to transistors as amplifiers or electronic switches. Datasheet here, property of Fairchild Semiconductor.

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Transistor, 2N7000, MOSFET

A good basic N-channel MOSFET transistor, capable of 400mw power dissipation, used primarily as a switch. Datasheet here, property of Fairchild Semiconductor.

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Transistor, MPSA13 Darlington

The MPSA13 is a Darlington transistor, which means its tiny case secretly holds two transistors that work with each other for higher gain. Capable of 30v and 500mA, but gets hot over 625mw.

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