Fulabs Ruler PCB Ruler PCB Project PCB PCB Package Unit 15CM/20CM/25CM

Key Features

✅ Instant SMD Size Reference

Common IC Package Markings:

OFN (Optical Flat No-Lead) / TDFN (Thin Dual Flat No-Lead)

SOIC (Small Outline IC) / SOP (Small Outline Package)

QFP (Quad Flat Package) / BGA (Ball Grid Array) outlines

✅ Dual-Purpose Design

Precision Ruler: 25.4mm × 152.4mm (1" × 6"), standard 1.6mm FR4 thickness

Font & Trace Width Chart: Quickly check text sizes and PCB trace widths

AWG Drill Size Guide: Match wire gauges to hole diameters

✅ Why It’s Indispensable

No more guessing SMD dimensions – compare parts directly to engraved outlines

Gold-plated markings resist wear for long-term use

How to Use

- Measure Components: Align SMD parts with etched outlines (e.g., SOIC-8 vs. TDFN-16).

- Check PCB Layouts: Verify trace widths (e.g., 10mil for signal lines).

- Drill Planning: Use AWG table to select drill bits for vias/wires.

Example:

"Is this chip a TDFN or QFN? Just place it on the ruler’s markings!"