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Validation & fab

BOM

Bill of Materials
The parts list — what to populate where.

How it looks

Real data: CORE3588 BOM, exported by kicad-cli from our schematic
QTYVALUEPACKAGELCSC PART2010uFC0805C8603816100nFC0603C15911310kR0603C98220122.2kR0603C41909100RR0603C227757TPS22919DCKRSC-70-6C21497966AFC07-S22FCC-00FPC 22-pinC11056... 53 different lines, 162 parts in all
The top of CORE3588's bill of materials, grouped by part. 20 identical 10 uF capacitors become one line; the last column is the supplier's part code at LCSC.

How it works

QTYVALUEPACKAGELCSC PART2010uFC0805C8603816100nFC0603C15911310kR0603C98220122.2kR0603C41909100RR0603C227757TPS22919DCKRSC-70-6C21497966AFC07-S22FCC-00FPC 22-pinC1105620 places on the board get this same capacitorthe code tells the assembler which reel to loadsize on the board must match the footprint

Where it fits

BOM says what; the CPL says where. Both feed the pick-and-place machine in a PCBA order.

Choosing basic parts in the BOM saves setup fees; parts the assembler lacks become consigned parts.

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