SparkFun Breadboard Power Supply Kit, USB to 3.3V
Handy power supply kit for breadboards—converts USB to regulated 3.3V/5V with 500mA fuse protection. Simple DIY assembly.
The SparkFun Breadboard Power Supply Kit is a simple yet efficient solution for providing a regulated and fuse-protected 3.3V output. Powered via a USB 2.0 port, this kit is ideal for prototyping and electronics projects, ensuring a stable power supply for your circuits.
Key features include 0.1-inch headers mounted on the bottom for easy insertion into a breadboard, allowing for seamless integration into your setup. The board can be oriented sideways, enabling simultaneous access to both 5V and 3.3V outputs—perfect for diverse project requirements.
Safety is ensured with an on-board 500mA PTC fuse, protecting your components from overcurrent. A convenient on/off switch allows for quick power management, adding an extra layer of control during testing and development.
Assembly Required: This kit comes as a bag of parts, so you'll need to assemble it by following the silkscreen indicators on the PCB. Included components are:
- PCB
- USB B port connector
- Voltage regulator
- PTC fuse
- LED
- Power switch
- Capacitors (0.1uF 50V, 10uF 25V, 100uF 35V)
- Resistors (240Ω, 330Ω, 390Ω)
- Header pins
Warning: Be cautious of unused power and ground pins, as they may short if inserted into a breadboard row. To avoid this, position the board so that unused power pins hang off the side.
Compact and practical, this power supply kit is a must-have for electronics enthusiasts and professionals alike, offering reliability and flexibility for a wide range of applications.
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.
- Shipped within 0-2 business days
- Shipping to United States: 3-5 business days*
- Free Shipping Included
- Prototyping electronics circuits
- Breadboard projects
- Powering microcontroller development boards
- Low-power sensor modules
- Power Source: USB 2.0
- Output Voltage: 3.3V (with optional 5V access)
- Current Limit: 500mA (PTC fuse-protected)
- Connector: USB B port
- Headers: 0.1-inch pitch for breadboard mounting
- Features: On/off switch, LED indicator
- Board Dimensions: 31.8mm x 31.8mm
- Included Components: PCB, USB B connector, voltage regulator, PTC fuse, capacitors (0.1μF, 10μF, 100μF), resistors (240Ω, 330Ω, 390Ω), header pins, power switch
- Assembly Required: Yes (follow PCB silkscreen)
Always follow local regulations and product guidance.
Free standard delivery on US mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For defective items, contact us within 14 days for a replacement or refund.
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