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The Adafruit PCB Ruler v2 is what its own listing calls this snazzy PCB reference ruler, a roughly 1 inch by 6 inch strip of standard-thickness FR4 with gold plating, the same base material and finish used for real circuit boards. Rather than being a simple length ruler, it is printed with a set of reference outlines and guides useful when designing, checking or building electronics.
Printed footprints for common component packages, including QFN, TDFN, SOIC, SOP and J-Lead, let you hold a part up against the ruler to sanity-check its outline before committing to a layout, or check whether a package on hand matches what a schematic calls for.
Beyond the package outlines, the ruler carries a font size guide for judging whether silkscreen text will be readable at a given point size, a trace-width diagram for estimating copper trace widths by eye, and an AWG-sized drill set reference that cross-references wire gauge against the drill bit size needed for a matching hole.
Because it is made from FR4 with gold plating rather than printed plastic or paper, it holds up to the kind of everyday bench handling a real PCB would see, including incidental solder flux or handling with slightly dirty hands, without the printing wearing off quickly.
PCB designers, electronics hobbyists and anyone who regularly checks component footprints, trace widths or drill sizes by eye will find this a handy, durable desk reference, more convenient than looking each figure up separately every time.
Standard-thickness FR4 material with gold plating, the same as a real circuit board.
QFN, TDFN, SOIC, SOP and J-Lead.
Yes, an AWG-sized drill set reference for matching wire gauge to drill bit size.
Approximately 1 inch by 6 inches.
Adafruit Industries.
| Brand | Generic |
|---|---|
| Selling unit | PCS |
