Components

These plastic LED holders have a black finish and only need the LED and the holder to be snapped into place easily and effectively, no screwing any...

These are very common, high quality BJT NPN transistors made by ST Micro. Datasheet: 2N3904

These are very common, high quality BJT, PNP transistors made by ST Micro. Datasheet: 2N3906

Low-profile electrolytic decoupling capacitors 10uF/25V. These capacitors are great transient/surge suppressors and work well as charge pump caps f...

Low-cost basic SOIC break out boards. These are custom PCB boards that interface standard SOIC devices to standard .1" headers. Pad layout fits...

CR2032 Lithium metal 3V 250mAh button cell battery. Great for powering low power processors or blink an LED for weeks at a time. Note: This item is...

USB Type ‘A’ Male connector. Ideal for making very small USB dongle devices that plug directly into a computer USB port or through a USB AtoA exten...

CR1225 lithium metal 3V 12mm 47mAh coin cell batteries. Perfect small battery for miniature sensor node applications. These batteries are sold in s...

A metal caster used for omni-directional robots.Omni-what? Imagine a robot with the dual-motor gear box. The robot can pivot in one spot, but it mu...

These are our large, beefy aluminum enclosures, which have been built tough enough to withstand a truck. This 2mm-thick, die-cast enclosure is rate...

DC to DC converter/regulator MC34063A. Has an input range of 3V to 40V, output switch current of up to 1.5 amp. Step up, step down and invert capab...

8 Darlington Arrays in 18-Pin DIP Package part # ULN2803A. Perfect for running relays and high-power devices up to 500mA and up to 50V!

2.4GHz ceramic chip antennas. Very small antennas that work nicely with the Nordic ICs. Don’t expect these little guys to perform as well as their ...

The Analog Voltage Divider V2 can detect the supply voltage from 0.0245V to 25V. This module is based on resistor divider principle. The voltage...

Small heat sink for TO-220 components. Ideal for keeping your 5V and 3.3V regulators running cool. Black anodized bolt on type with 2.5W dissipation.

Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V regulated voltage. The ....

Thanks to their square shape, these RGB LEDs can sit flush against a PCB saving you precious vertical space in projects where space is a luxury. Th...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement e...

Whisker Switches - Very sensitive lever switches. Great for detecting objects such as other sumo bots, walls, balls, etc. Simple to wire and attach...

Resonators function like crystals but stick closer to their specified frequency over a full temperature range. These resonators are +/-0.5% or bett...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds ...

These are ¼th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 1K Ohm resistors make excellent pull-ups...

This a tiny little breadboard...half the size of a half-size breadboard! Measures 1.8" x 1.4" (46mm x 36mm) Perfect for tiny projects and for stic...

This is a preprogrammed Atmega328P chip, useful if you want to make your own Arduino-compatible or repair a damaged chip on an exisiting Arduino UN...