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SparkFun SparkFun Accessories 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 (@250VA 10In Stock
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SparkFun SparkFun Accessories Ever hear of a thing called RGB? Red Green Blue? How about an RGB LED? These 5mm units have four pins - Cathode is the longest pin. One for each color and a common cathode. Use this one LED for three status indicators or pulse width modulate all th
Datasheet
39In Stock
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SparkFun SparkFun Accessories Transistor NPN (2N3904) 1,211In Stock
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SparkFun SparkFun Accessories Voltage Regulator 3.3V 102In Stock
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SparkFun SparkFun Accessories LEDs - those blinky things. A must have for power indication pin status opto-electronic sensors and fun blinky displays.This is a very standard yellow LED. The lens is 3mm in diameter and it is diffused.Features:2.0-2.4VDC forward dropMax current 98In Stock
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SparkFun SparkFun Accessories These are small, rare earth magnets - 3/16" rings. Composed of Neodymium/Iron/Boron (NdFeB). These magnets are curiously strong and make for a great way to attach tools to a metal workbench. 135In Stock
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SparkFun SparkFun Accessories Atmel's itty-bitty ATtiny85 8-Bit Processor. 8K of program space 6 I/O lines and 4-channel 10 bit ADC. Runs up to 20MHz with external crystal. Package can be programmed in circuit.Documents:Product CardArduino Board Definitions 2In Stock
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SparkFun SparkFun Accessories USB Type 'Mini-B' Female SMD connector. This is a 5-pin Mini-B surface mount connector commonly found in MP3 players media/disk readers USB hubs pretty much anything small and USB.Documents: Datasheet 7In Stock
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SparkFun SparkFun Accessories These are simple through-hole RJ45 sockets with PCB mounting posts. These 8-pin connectors are commonly used in conjunction with Cat5 Cat5e and Cat6 Ethernet cables. Because Ethernet cable is so ubiquitous these are awesome for projects where you
Datasheet
143In Stock
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SparkFun SparkFun Accessories There are your standard Philips-head 4-40 screws. They are 1/4" long and come in packs of ten. This is the screw size we use in most of the holes for our breakout boards. Check below for other associated hardware. 14In Stock
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SparkFun SparkFun Accessories This is a simple 2x3 female PTH header. This header is in the common configuration for an ISP connector. Each pin has a spacing of 0.1" in between each other. 198In Stock
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SparkFun SparkFun Accessories One-Wire Ambient Temp Sensor MAX31820 21In Stock
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SparkFun SparkFun Accessories Spade Connector Wire 3ft, Female (2 Pk)
Datasheet
7In Stock
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SparkFun SparkFun Accessories USB C is fantastic. But until we have converted all our hubs chargers and ports over to USB C this is the cable you're going to need. Supporting USB 3.1 speeds and charging up to 3A this 1 meter cable is perfect for high data rate transfers and ch 26In Stock
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SparkFun SparkFun Accessories SPDT Mini Power Switch
Datasheet
68In Stock
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SparkFun SparkFun Accessories These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. Please take a look at the pictures to get an idea of the intensity. All lenses are clear.Features:Standard Size - T1 3/4 5mm10 000mcd brightness2.4V forward dr 13In Stock
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SparkFun SparkFun Accessories This is a simple subminiature size axial lead mounted rectifier diode. Often used for reverse voltage protection the 1N4001 is a staple for many power DC to DC step up and breadboard projects. The 1N4001 is rated for up to 1A/50V. 1,921In Stock
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SparkFun SparkFun Accessories This is a black plastic bezel custom made to mate with the silicon rubber pads. Black 1/8" ABS plastic. We use four 4/40-0.5" size screws matched with plastic standoffs to attach the 2x2 button pad and Simon project boards. Using two of these bezels
Datasheet
19In Stock
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SparkFun SparkFun Accessories The US1881 is an integrated Hall effect latched sensor. That's nice but what does it do? Holding a magnet near the sensor will cause the output pin to toggle. This makes for a robust presence sensor. A reed sensor also works nicely but can be limite 6In Stock
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SparkFun SparkFun Accessories Check out these big 10mm through-hole LEDs! The opaque epoxy package causes these LEDs to have a soft diffuse glow.Features:587-591nm Yellow1.8-2.2VDC Forward Voltage20mA Forward Current40 degree viewing angle100-150 MCD outputDocuments:[Datasheet]( 7In Stock
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SparkFun SparkFun Accessories This is a 3-terminal microswitch two pack each equipped with a 20mm offset lever actuator. These switches have a great 'clicky' sound to them with a nice tactile feel and are perfect when used for a slider 3D printer or robot project. Each microsw 11In Stock
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SparkFun SparkFun Accessories 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 extension cable.Documents: Datasheet 7In Stock
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SparkFun SparkFun Accessories DIP Sockets Solder Tail - 14-Pin 0.3 79In Stock
24Expected 8/13/2026
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SparkFun SparkFun Accessories This is a row of 40 break away headers spaced 0.1" apart with long pins on both sides. This header is especially useful when you need to connect a PCB to a solderless breadboard. Each header can be broken apart to your preference to fit custom PCBs o 315In Stock
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SparkFun SparkFun Accessories Photo interrupter photogate photodiode phototransistor whatever you want to call it this sensor is composed of an infrared emitter on one upright and a shielded infrared detector on the other. By emitting a beam of infrared light from one uprigh 34In Stock
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