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Duinopeak DIY PCB Ruler for Electronics Engineer - Black
The first time you soldered up a surface mount component you may have been surprised "these are really small parts!" and there's dozens of different names too! QFN£¬ TDFN£¬ SOIC£¬ SOP£¬ J-Lead£¬ what do they mean and how can you tell how big they are? Now you can have a reference board at your fingertips£¬ with this snazzy PCB reference ruler. Measuring approx 1" x 6"£¬ this standard-thickness FR4£¬ gold plate ruler has the most common component packages you'll encounter. It also has font size guide£¬ trace-width diagram£¬ and a set of AWG-sized drills so you can gauge your wire thicknesses. New! As of Sept 15£¬ 2014 we're now shipping v2 which is basically the same thing as the original but Inches are marked with 1/10" rather than the more common 1/8". The centimeter side is still 0.1cm marks.