What Is the Difference Between PCB and PCBA
The difference between PCB and PCBA sounds simple until a project reaches the quote stage. A buyer asks for "PCBs" but expects working electronics. An engineer sends Gerber files but does not include a BOM or pick-and-place file. A prototype team receives beautiful bare boards, then realizes nobody ordered component assembly. The terms are short, but the scope difference can change cost, schedule, supplier responsibility, inspection, and test. A PCB is the fabricated bare board. It provides the copper, dielectric, vias, pads, solder mask, silkscreen, surface finish, and mechanical outline that support the circuit. A PCBA is the board after electronic components have been placed, soldered, inspected, and, when required, electrically or functionally tested. In other words, PCB fabrication makes the board. PCBA assembly turns that board into an electronic assembly. That short definition is useful, but it is not enough for purchasing, engineering release, or prototype planning. T...