Definition

Panelization arranges multiple PCB units on a larger manufacturing panel to improve handling efficiency and reduce cost. Units are connected by breakaway tabs (with V-score or routed perforations) or placed in a rail frame. Standard panel sizes are 18×24 inches (457×610mm) or 21×24 inches (533×610mm). Larger panels reduce cost per board but require larger handling equipment. When designing for panelization, account for component overhang at board edges, maintain 3mm clearance from V-score lines to sensitive components, and discuss array layout with your fabricator before finalizing.