SparkFun Breadboard Power Supply Stick
Best compact power solution for electronics hobbyists and rapid prototyping.
This is the cleanest way to ditch messy jumper wires and external battery packs for your prototyping bench. It snaps directly onto your breadboard to deliver stable, switchable power, trading a bit of vertical space for a significantly more organized and reliable development workflow.
$9.95
at
SparkFun Electronics
Who it's for
- Hobbyists working on compact circuits with limited workspace
- Makers using a mix of modern sensors and classic microcontrollers
- Beginners seeking a safer alternative to loose battery wires
Who should skip it
- Engineers building power-hungry robotics or complex mechanical systems
- Users running continuous high-load projects in enclosed spaces
- Prototypers designing large-scale circuits that span multiple power rails
Performance breakdown
Breadboard Integration
Perfectly spaced headers make insertion into standard breadboards seamless and secure.
Voltage Versatility
Switching between 3.3V and 5V covers almost every common hobbyist microcontroller.
Safety Reliability
The integrated PTC fuse provides essential peace of mind during prototyping.
Form Factor
Compact design keeps your workspace tidy without obstructing adjacent component pins.
Input Flexibility
Dual power options accommodate both barrel jacks and raw wire connections.
Current Capacity
Adequate for most sensors, but limited for power-hungry motors or displays.
Key Specs
Input Voltage
6-12V
Output Voltage
3.3V or 5V
Operating Current
0.8 Amperes
Dimensions
54.61 x 16.51 mm
Power Connection
5.5x2.1mm DC barrel jack or 2-pin header
Protection
PTC fuse
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