PCB design tips- edge clearance When designing a printed circuit board (PCB), determining how close components can be placed to the board edge is a common challenge. The answer depends on multiple factors, such as the IPC-7351A standard for the keep-out area, the specific mounting arrangement, and the manufacturer's edge clearance limits. These considerations help ensure that components do not interfere with mounting hardware or extend beyond the board edge. For prototypes, the rules can be more flexible; parts can be placed closer to the edge if there is sufficient copper for a reliable connection and minimal risk of damage during handling. Prototypes should resemble the final design as closely as possible to minimize unexpected changes during full production.
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