The Adafruit Perma-Proto Quarter-Sized Breadboard PCB (3-Pack) provides three compact prototyping boards that bridge the gap between solderless breadboards and permanent soldered circuits. Each board has 15 rows of 5-hole connected pads divided into two blocks (just like a standard breadboard), plus four bus lines for two independent power supplies.

The five-pin rows in each block are electrically connected, so you can mount a 14-pin DIP IC and easily connect other components to its pins without extra wires. All connections are visible from the back side for easy verification.

Key Features (Each Board)

• 15-Row Breadboard Layout – Two blocks of 5-hole connected pads, just like a mini breadboard
• 4 Bus Lines – Supports two independent power supplies
• Through-Plated, Gold-Finished – Durable pads that resist oxidation and survive rework
• 1.2mm (47 mil) Drill Holes – Fits components with thicker leads like diodes
• No Solder Mask – Easily cut traces on the bottom side
• 2 Mounting Holes – 0.125″ holes for #4 or M3 screws, spaced 1.4″ apart

Specifications

• Board Dimensions – 1.7″ × 2.0″ (43 × 51mm)
• Thickness – 0.063″ (1.6mm)

Ideal For

• Small, compact soldered circuit builds
• DIP IC-based projects (fits 14-pin packages)
• Transferring tiny breadboard prototypes to permanent PCBs

Package Contents

• 3× Perma-Proto Quarter-Sized Breadboard PCBs

Also Consider

• Perma-Proto Half-Sized PCB – 3-Pack – 30-row version for medium projects
• Perma-Proto Full-Sized PCB – 3-Pack – 60-row version for larger projects