Adafruit
Adafruit Perma-Proto Mint Tin Size Breadboard PCB
Best compact prototyping solution for portable, tin-sized electronics projects.
Perfect for compact projects, this Perma-Proto board scales a half-sized breadboard layout to fit snugly inside an "Altoids Smalls" Mint Tin. Designed for quality, it replaces standard perfboard with durable, thru-plated holes and a gold finish to prevent oxidation and pad peeling. The top features clear breadboard markings for easy component transfer. The layout includes 15 rows of 5-hole pads, two central power bus lines, and 48 edge holes for general wiring. Four mounting holes allow secure attachment inside a tin. This package includes three high-quality prototyping PCBs.
$5.95
Owner Satisfaction
4.7
/ 5
Category Rank
2
/ 159
#2 in Breadboards
Price vs Category Average
-62%
Below average
Dimensions
54332.11.30.0634
/ mm x mm (" x "), " thick FR
Who it's for
- Makers building compact, portable electronics in pocket-sized enclosures
- Hobbyists transitioning temporary breadboard prototypes into permanent, reliable circuits
- Engineers requiring durable, professional-grade materials for long-term project stability
Who should skip it
- Advanced users preferring custom routing for optimized component placement
- Developers designing complex circuits with high component counts
- Budget-conscious builders needing large-scale prototyping surfaces at lower costs
Performance breakdown
Form Factor Integration
Precision engineering ensures a perfect fit for Altoids Smalls tins.
Durability
Thru-plated holes and gold finish withstand repeated soldering and rework cycles.
Prototyping Efficiency
Breadboard-style layout makes migrating circuits from test to permanent effortless.
Mounting Versatility
Integrated mounting holes allow for secure, rattle-free installation in compact enclosures.
Power Distribution
Dedicated bus lines simplify complex wiring in a very tight footprint.
Component Compatibility
Standard hole spacing accommodates most common through-hole electronic components.
Key Specs
Dimensions
54mm x 33mm (2.1" x 1.3"), 0.063" thick FR4
Drill Hole Diameter
1.2mm / 0.047"
Package Quantity
3 boards
Layout
15 rows of 5-hole pads plus 48 individual holes
Power Rails
2 bus lines
Surface Plating
Gold plate
Mounting Holes
4 holes spaced on a 45.5mm x 25.4mm rectangle
Compatible With
Altoids "Smalls"-sized mint tin
Features
- Designed to fit an Altoids Smalls Mint Tin
- Breadboard-style layout for easy prototyping
- Thru-plated holes prevent pad peeling during rework
- Gold plate finish resists oxidation
- Familiar white silkscreen markings included
- Includes four mounting holes for tin attachment
- High-quality PCB construction over perfboard
- Power bus lines simplify circuit connections
What customers say
This PCB earns high praise for its ingenious form factor and excellent build quality. Users find it the perfect solution for making small breadboard prototypes permanent and robust. Its precise fit within standard mint tins is a major advantage, eliminating custom modification time. The layout mirrors familiar breadboarding, easing the transition to soldering. Reviewers confirm the material durability and reliable solder pads, upholding Adafruit's quality reputation. While space is limited for complex builds, this trade-off is accepted for portability. The consensus is that this component offers exceptional value, transforming temporary setups into professional, deployable devices for compact projects.
Know before you buy
No, this board is specifically designed for the smaller 'Altoids Smalls' mint tins. It measures 54mm x 33mm, so it will be too small for a standard tin.
Unlike basic perfboard, these PCBs feature thru-plated holes that prevent pads from peeling off during soldering or rework. They also include breadboard-style markings and power rails to make transferring your prototype much easier.
Absolutely. While they are sized for Altoids Smalls tins, they are high-quality, durable prototyping boards that work perfectly for any compact electronics project where space is limited.
The four mounting holes are spaced on a 45.5mm x 25.4mm rectangle. They are designed to accommodate small screws or standoffs commonly used for securing electronics inside a tin.
Yes, each package comes with three individual Perma-Proto boards, giving you enough material to build several small projects or prototypes.
Still have a question?
Ask Hayley anything about this product before you decide.