Prototyping

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...

Analog Devices Thermocouple Type-K Amplifier. Attach a thermocouple, 5V power, and a decoupling capacitor and you’ve got 10mV/C output! Perfect ...

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!

The SparkFun BigTime watch kit is a geekishly stylish digital watch with a NATO style watch-band and a slick acrylic enclosure. If it seems familia...

These are 9x16 Charlieplexed LEDs designed to match with the Adafruit 16x9 Charlieplexed PWM LED Matrix Driver - IS31FL3731. You don't get any r...

36" high temperature Type-K Thermocouple with glass braid insulation.

Your 5V system can wield great power with this big, beefy relay board. How does 20A on the NC contacts and 10A on the NO contacts at 220VAC sound? ...

This connector, a smaller version of the male Tamiya plug, is commonly used with battery packs for RC applications. The connector is keyed so that...

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...

Do you fear that your power may not be “far reaching” enough? How would another 6' work for you? Okay, so it doesn’t sound very dramatic, but somet...

The SparkFun LED Array is a set of 56 red LEDs arranged in a nice 8x7 grid. This little board requires eight pins while the library supports any AT...

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

This style of high-current connector is commonly used with the 7.2V sub-C battery packs that power many RC cars. The connector is keyed so that po...

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 ....

This is a very large row of high quality machine pin headers - break to fit. 40 pins that can be cut to any size. Used with custom PCBs or gener...

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...

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...