Mounting holes should generally be plated as this allows mounting with metal screws.There are a few points that everyone agrees on when it comes to PCB mounting holes: How to Design PCB Mounting HolesĪs the name implies, PCB mounting holes are used to secure your circuit board to an enclosure. If you understand how power and ground are defined on the input to your PCB, it will be easier to design a mounting strategy that properly accounts for ground. Like most design rules that are framed this way, the real answer is more complicated and involves many aspects of a design, ranging from input power to the structure of your grounding system. One person will claim they always ground their mounting holes to an enclosure, while another person will claim it should never be done as it will ruin the design. This is a fun question, and the answer is typically framed as an "always/never" situation. Should mounting be grounded in the design, and if so, how should they be grounded? Should they always be connected to chassis, only to an internal ground, or somewhere else? One question that often arises in this instance is the grounding and PCB mounting holes. These PCB mounting holes generally have the pad exposed beneath solder mask so that, if needed, the mounting point can be connected electrically back to one of your nets. In order to provide a secure mount without damaging the surface of the PCB with a screw, it's typical to simply place plated through holes in the corners. Natasha joins us to discuss the origin of SnapEDA, its free automated part builder, Instabuild, and what transparency means to engineering.Whenever you place your board into an enclosure, it will need to mount to that enclosure somehow. SnapEDA is, the world’s first electronics design search engine, currently serves more than a million professional engineers, and supports the development of more than 400,000 unique hardware products every year. Natasha is an electrical engineer with fourteen years of experience who founded SnapEDA after seeing a need for a ‘Google of electronics components’. OnTrack welcomes Natasha Baker, CEO of SnapEDA.
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