SparkFun Breadboard Power Supply 5V/3.3V
Affiliate disclosure: Everything About Robotics may earn a commission from qualifying purchases through these links. SparkFun handles checkout, fulfillment and returns. Read our affiliate disclosure.
Assemble a regulated power supply for a breadboard with this kit. It accepts a suitable DC source and offers selectable 3.3-volt or five-volt output, along with an on/off switch. Bottom-mounted headers connect to the breadboard power rails, and the barrel-jack footprint also provides points for a wired DC input.
Before you buy
Requires soldering and component identification; check the specified input range and polarity before powering it.
SparkFun SKU: PRT-00114 · Category: Breadboard power supplies
Check SparkFun for current price, stock, shipping and the exact included components.
Official product specifications and documentation
EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.