Adafruit PCB Ruler v2 - 6 - Default

Keep a handy component reference at your fingertips with this gold-plated PCB ruler. Measuring approximately 25 × 152 mm (1″ × 6″) on standard-thickness FR4, it features the most common surface-mount component packages you'll encounter — QFN, TDFN, SOIC, SOP, J-Lead, and more — all shown at actual size for quick identification.

Beyond the component footprints, the ruler includes a font size guide, trace-width diagram, and a set of AWG-sized drill holes so you can gauge wire thicknesses at a glance. The inch side is marked in 1/10″ increments and the centimetre side in 0.1 cm marks.

Key Features

• Common SMD Package Reference – Actual-size footprints for QFN, TDFN, SOIC, SOP, J-Lead, and more
• Measurement Scales – Inches (1/10″ increments) and centimetres (0.1 cm marks)
• Trace-Width Diagram – Visual reference for PCB trace widths
• AWG Drill Holes – Gauge wire thicknesses quickly
• Font Size Guide – Reference for silkscreen text sizing
• Gold-Plated FR4 – Durable standard-thickness PCB with a premium finish

Specifications

• Dimensions: ~25 × 152 mm (1″ × 6″)
• Material: Standard-thickness FR4 with gold plating
• Version: v2 (inch markings in 1/10″ increments)

Ideal For

• PCB designers and electronics engineers
• Identifying SMD component packages at the bench
• Quick wire and trace-width reference
• Gifts for makers and hardware enthusiasts

Package Contents

• 1× Adafruit PCB Ruler v2 (6″)