FR4 Double-Sided Prototype PCB 3×7cm – Universal DIY Circuit Board

Build, prototype, and experiment with confidence using this FR4 Double-Sided Prototype PCB. Measuring a compact 3×7cm, this universal green circuit board is perfect for electronics hobbyists, engineers, students, and makers who need a reliable platform for soldering components, testing circuits, and creating custom electronics projects.

Why Choose This Prototype PCB?

FR4 Material: Made from high-quality FR4 fiberglass-reinforced epoxy laminate — durable, flame-retardant, and dimensionally stable for consistent performance.
Double-Sided Copper Layers: Copper traces on both sides give you maximum routing flexibility for complex circuit layouts.
Universal Hole Grid: Standard 2.54mm (0.1") pitch through-hole grid accommodates a wide range of DIP ICs, resistors, capacitors, transistors, and other through-hole components.
SMD Compatible: Supports SMD (Surface Mount Device) component placement for more advanced builds.
Compact 3×7cm Size: Ideal for small circuits, wearable electronics, Arduino add-ons, and modular project boards.
Green Solder Mask: Classic green finish with clear, easy-to-read copper pads for straightforward soldering.
Customizable: Available as a customizable option to suit your specific project requirements.

Specifications

Material: FR4 Fiberglass
Board Size: 3 × 7 cm
Layers: Double-Sided (2 copper layers)
Hole Pitch: 2.54mm (0.1")
Includes: SMD capability
Color: Green
Customizable: Yes

Perfect For

Arduino, Raspberry Pi, and microcontroller prototyping
Electronics hobbyists and DIY makers
Engineering students and university lab projects
Small circuit testing and breadboard-to-PCB migration
Wearable electronics and compact embedded systems

Frequently Asked Questions

Q: What is an FR4 double-sided prototype PCB and what is it used for?

A: An FR4 double-sided prototype PCB is a printed circuit board made from FR4 fiberglass laminate with copper layers on both sides. It provides a durable, reusable platform for soldering and testing electronic components during the prototyping phase of a project. The 3×7cm size is ideal for compact circuits used in Arduino projects, DIY electronics, and embedded systems development.

Q: What does "double-sided" mean for a prototype PCB?

A: "Double-sided" means the board has conductive copper traces on both the top and bottom surfaces. This allows for greater circuit complexity and more efficient use of board space compared to single-sided boards — you can route connections on either side and connect them through the board's through-holes.

Q: Is this PCB compatible with SMD components?

A: Yes! This prototype PCB supports SMD (Surface Mount Device) components in addition to standard through-hole parts. This makes it versatile for a wide range of modern electronics builds that use compact surface-mount chips, resistors, and capacitors.

Q: What is the hole pitch on this universal prototype board?

A: The board uses the industry-standard 2.54mm (0.1 inch) hole pitch, which is compatible with the vast majority of DIP ICs, headers, connectors, and through-hole components available on the market today.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.