Digi-Key RED PCB LAYOUT REFERENCE RULER 12"
PCB RulerDIGIKEY STANDARD's PCB ruler is ideal for electrical engineers, electronic technicians, and hobbyists.DIGIKEY STANDARD's ruler is a PCB layout reference tool. It includes several footprints of the extremely common IC, crystal, diode, and passive packages, along with wire diameter references, trace width ampacity charts and trace width examples, pitch examples, metric and inch mounting hole examples and diameters, font height examples, thru-hole examples from 0.4 mm to 2 mm, test point examples, and a QR code to easily turn a phone into even more help with their online calculators and conversion tools.