DigiKey Standard
PCB Ruler - PCB layout reference ruler 12 inch
The DigiKey Standard ruler is a practical PCB layout reference tool, featuring footprints for common ICs, crystals, diodes, and passive components. It also includes wire diameter guides, trace width and ampacity charts, pitch and mounting hole examples (both metric and inch), font height references, thru-hole sizing from 0.4 mm to 2 mm, test point layouts, and a QR code linking to online calculators and conversion tools for added design support.
Features:
Footprints of the most common IC, crystal, diode, and passive packages
Trace width ampacity charts and trace width examples
Pitch examples
Font heigh examples
Thru-hole examples from 0.4mm to 2mm
Applications:
Inch and metric mounting hole examples and diameters
Copper thickness charts
Metric machine holes
7-strand wire gauge examples and diameters
Test point examples