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Why Providing Component Libraries Lowers PCB Layout Design Cost

In PCB layout design, building a component library is an essential step in the design process.


If the client can provide a complete component library, it will significantly reduce the workload and therefore lower the layout quotation.

In PCB design, a component library is a database that contains information for all electronic components, typically consisting of three parts:

  • Schematic Symbol Library: Defines the logical symbols and pin relationships of components on the circuit diagram, representing their electrical functions.

  • Footprint Library: Describes the physical pad shapes, dimensions, and placements on the actual PCB to ensure proper soldering and mechanical fit.

  • 3D Model Library: Provides the three-dimensional representation of components, allowing for spatial checks, thermal analysis, and assembly previews in 3D.

A well-standardized component library greatly improves design efficiency, prevents soldering errors and mechanical conflicts, and increases the overall design success rate.


During the layout design process, our engineering team creates component symbols and footprints based on the provided schematic.

If the client provides a complete component library, we can skip this step and save valuable design time.

As a result, the overall quotation will be lower due to the reduced engineering workload.

Common component library file formats include .lib, .kicad_mod, .PcbLib, .SchLib, etc.

We recommend submitting the library files together with the BOM and schematic to ensure a smoother workflow.


Providing a complete component library helps reduce design time and overall cost, and avoids potential rework caused by incorrect footprints.

If you don’t have existing library files, don’t worry — we can assist in creating standard component libraries to ensure a smooth and efficient design process.


Last updated on 09/10/2025
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