Adafruit
Adafruit Perma-Proto Quarter-sized Breadboard PCB - Single
Best prototyping solution for makers transitioning from breadboards to permanent projects.
Bridge the gap between temporary breadboards and permanent soldering with these Perma-Proto Quarter-Sized PCBs. They function like perf-boards but feature internal connections identical to a 210-point solderless breadboard. Each board offers four bus lines for power and 15 rows of connected pins, perfect for mounting ICs or other components neatly. Sold in a convenient pack of three, these durable boards measure approximately 1.7" x 2.0". They include through-plated, gold-plated holes for strength and oxidation resistance, plus mounting holes for secure installation. The lack of a solder mask allows for easy trace modification when needed.
$8.49
Owner Satisfaction
4.7
/ 5
Category Rank
2
/ 159
#2 in Breadboards
Price vs Category Average
-45%
Below average
Quantity
Pack of three boards
/ Pack of three boards
Who it's for
- Hobbyists prioritizing long-term durability and reliable solder connections
- Makers transitioning prototypes to permanent soldered projects
- Engineers building circuits for compact, space-constrained enclosures
Who should skip it
- Developers designing complex systems with numerous components
- Budget-conscious builders seeking the lowest cost per board
- Experimenters who frequently need to modify or debug circuits
Performance breakdown
Prototyping Transition
Mirrors breadboard layouts perfectly for seamless project migration.
Build Durability
Gold-plated through-holes ensure long-term reliability for permanent builds.
Modification Flexibility
Lack of solder mask makes trace cutting and customization effortless.
Component Density
Compact footprint is ideal for small, space-constrained electronics projects.
Mounting Versatility
Integrated holes allow for secure, professional-grade panel installation.
Power Distribution
Four dedicated bus lines simplify complex dual-voltage circuit routing.
Key Specs
Quantity
Pack of three boards
Dimensions
1.7″ × 2.0″ (approx. 43.18 mm x 50.8 mm)
Thickness
0.063″ (approx. 1.6 mm)
Total Tie Points
210
Bus Lines
4
Pin Rows
15 rows (divided into two blocks)
Mounting Holes
Two 0.125″ diameter holes spaced 1.4″ apart
Surface Plating
Gold-plate finish
Features
- Functions like perf-board with breadboard connections
- 210 total connection points
- Four bus lines for dual power supplies
- Through-plated holes enhance durability
- Gold-plate finish resists oxidation
- Silkscreen labels aid component identification
- No solder mask for easy trace cutting
- Includes mounting holes for permanent fixture
What customers say
Users highly value this quarter sized PCB for its convenience and quality when moving circuits from breadboards to permanent builds. The familiar layout minimizes errors and accelerates prototyping. Reviewers consistently praise the durable construction and clearly marked pads, which ensure reliable soldering for long term use. Its compact format is perfect for custom shields and small embedded systems where space is tight. This product is considered an essential, robust tool that saves significant time. The overall consensus confirms that the convenience and dependable quality easily justify the investment, leading to strong community recommendations.
Know before you buy
While the internal wiring layout is identical to a standard 210-point solderless breadboard, these are permanent PCBs. You must solder your components into the through-plated holes to create a lasting connection.
Yes. Because these boards do not have a solder mask, you can easily cut traces with a hobby knife if you need to reroute connections or isolate specific pins during your build.
Absolutely. Each board features two mounting holes spaced 1.4 inches apart, making it simple to secure your project inside a case or onto a panel using standard hardware.
No, the pack includes only the three PCBs. You will need to provide your own jumper wires or use component leads to make your connections.
The gold-plated finish provides excellent oxidation resistance, ensuring that your solder joints remain reliable and conductive over a long period of time.
Still have a question?
Ask Hayley anything about this product before you decide.