Universal Prototype PCB Board 3×7cm — Double-Sided FR4 for Electronics Projects

Universal Prototype PCB Board — 3×7 cm, Double-Sided FR4

The 3×7 cm universal prototype PCB board is the narrow strip format — ideal for linear circuit designs, single-row component layouts, and projects where a long, narrow board fits better than a square format. With a double-sided FR4 fiberglass substrate and a 2.54mm (0.1") pitch through-hole grid, it accepts all standard DIP ICs, resistors, capacitors, and connectors without adapters.

Key Features

• 3×7 cm narrow strip format — ideal for linear circuits, single-row layouts, and tight enclosure builds
• Double-sided copper layer — solder on both sides for denser routing and ground plane connections
• FR4 fiberglass substrate — rigid, dimensionally stable, rated for standard soldering temperatures
• 2.54mm (0.1") pitch through-hole grid — compatible with all standard DIP components and pin headers
• Tin-plated through-holes — excellent solderability, corrosion-resistant pads

Typical Applications

• Linear circuit designs and single-row component layouts
• Arduino shield edge connector circuits
• LED driver and indicator strip circuits
• Narrow enclosure and panel-mount circuit builds
• Custom PCB replacement for strip-format electronics

Technical Specifications

• Dimensions: 3 × 7 cm
• Substrate: FR4 fiberglass
• Copper Layers: Double-sided
• Hole Pitch: 2.54 mm (0.1")
• Surface Finish: Tin-plated
• Brand: Keszoox
• Origin: Mainland China

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.