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PCB Design Component Library | Cadence

Key Takeaways

  • Standardized Component Libraries – Using verified libraries with consistent symbols, footprints, and parametric data reduces errors and ensures manufacturability.

  • Efficient Library Creation – OrCAD X Capture Component Information Systems (CIS) simplifies adding new components by integrating with third-party libraries like SamacSys, Ultra Librarian and SnapEDA, reducing manual entry effort.

  • Centralized Library Management – OrCAD X cloud-based Workspaces ensure consistency across designs by providing a single source of truth for component data.

Component Explorer window in OrCAD X

OrCAD X Capture Component Explorer Dashboard

A PCB design component library is a collection of electronic component models that facilitate schematic capture, PCB layout, and simulation. These models include design elements such as:

  • Schematic Symbols: Graphical representations of electronic components used in circuit schematics.

  • PCB Footprints (Land Patterns): Layout patterns that define pad placement for soldering components onto a PCB.

  • 3D Models: Visual representations used for mechanical integration and design validation.

  • Simulation Models: Data for circuit simulation and performance analysis.

Types of PCB Design Component Libraries

PCB Design Component Library

Description

Key Benefits

Integrated Libraries

Pre-compiled, self-contained libraries that include all necessary models and parameters.

Ideal for offline use and projects requiring high data integrity.

Database Libraries

Components are stored in a centralized database and linked dynamically.

Allows for real-time updates and easy synchronization with company-wide component databases.

Cloud-Based Libraries

Hosted online and accessible from multiple locations. Shared within a team and ensures everyone works with the latest component data.

Real-time component data updates, including manufacturer availability and pricing. Facilitates collaboration across distributed teams.

File-Based Libraries

Standalone libraries stored in local files, such as Schematic Libraries (.SchLib) and PCB Libraries (.PcbLib).

Useful for smaller projects and offline work but requires manual updates.

OrCAD X PCB Design Component Library

Key elements that contribute to the streamlined OrCAD X PCB design component library include:

Cloud Workspaces and Libraries

OrCAD X integrates cloud-based Workspaces and Libraries, allowing for centralized component management. This ensures that design teams can collaborate efficiently, reducing redundancy and maintaining consistency across projects. Workspaces enable administrators to set specific file-viewing and editing privileges, ensuring that only verified components are used in designs.

Component Information Systems (CIS)

The Component Information System (CIS) in OrCAD X allows designers to integrate a part database into their CAD environment, streamlining component selection, data accuracy, and supply chain management. CIS includes several essential features:

CIS Feature

Description

Native Database Access

Direct access to part information, including symbols, footprints, parametric data, company part statuses, and manufacturing details within OrCAD X Capture.

Part Manager

Ensures synchronization between the schematic and the part database, allowing designers to identify and correct discrepancies efficiently.

Variant Support

CIS enables designers to manage design variants by defining Do Not Stuff components and alternate component values for different markets and specifications.

Automatic BOM Generation

OrCAD X automates the Bill of Materials (BOM) process, extracting parametric and purchasing data to create accurate procurement-ready BOMs.

Managing Large PCB Component Libraries in OrCAD X

Large component libraries introduce challenges in maintaining accuracy and efficiency. OrCAD X provides solutions to address these issues:

Workspaces for Team Management

Workspaces allow administrators to assign role-based privileges, ensuring that only authorized personnel can modify library files. This prevents unauthorized changes to footprints, reducing errors and ensuring consistency.

Component Explorer for Verified Footprints

Design teams can leverage footprint data from leading component vendors directly within OrCAD X, reducing the time spent creating footprints and minimizing errors in footprint design.

Live BOM for Real-Time Procurement Insights

Live BOM provides instant access to component availability, lead times, and pricing, allowing designers to select alternative components proactively when sourcing challenges arise.

 Live BOM feature of understanding real-time insights of components
Live BOM Dashboard in OrCAD X

How To Add PCB Design Components in OrCAD X

Adding components in OrCAD X Capture CIS is a streamlined process that allows users to efficiently build and manage a component library with cloud-based integration.

Activating Workspaces in OrCAD X Capture CIS

  1. Open OrCAD X Capture CIS and create a new schematic project.

  2. Select Place > Component from the menu to open Unified CIS.

  3. Access component libraries from Ultra Librarian, SamacSys, SnapEDA, and cloud-based Workspaces.

  4. To configure library selection:

  • Right-click My Workspace and select Workspace Configuration.

  • Choose Local for locally hosted CIS databases or Cloud to access cloud libraries.

  • Click OK to activate the corresponding data source.

Creating a New Library Category

  1. Right-click My Workspaces and select Add Category.

  2. Enter a Category Name (e.g., "IC") and select the Part Type (Electrical or Mechanical).

  3. Click the + icon under Properties to add standard properties.

  4. Define key properties, e.g.:

  • Manufacturer Part Number (Visibility: Value, Type: Numeric)

  • Manufacturer Name (Visibility: Value, Type: String)

  • Mounting Type (Visibility: Do Not Display, Type: String)

  • Voltage Supply (Visibility: Do Not Display, Type: String)

  • Operating Temperature (Visibility: Do Not Display, Type: String)

  • Select the Models tab and attach default Symbols and Footprints.

  • Click Save to finalize the new category.

  • Window for new category creation in OrCAD X
    Adding a New Library Category within the Workspaces tab  in OrCAD X

    Creating a New Library Component

    1. Right-click the newly created category (e.g., "IC") and select New Component.

    2. Enter a Part Number (e.g., "CDN-0001").

    3. Select In Development under Lifecycle.

    4. Populate component attributes, e.g.:

    • Operating Temperature: "-40 to +125"

    • Voltage Supply: "3.3V"

    • Mounting Type: "Surface Mount"

  • Click Save to add the component to the library.

  • Managing a PCB design component library effectively is crucial for ensuring accuracy, consistency, and efficiency in your design workflow. Ready to enhance your PCB design process? Explore the full Cadence PCB Design and Analysis Software suite and discover how OrCAD X can elevate your library management strategy.

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