Würth Elektronik Component Library & EDA Models
Provider：Würth Elektronik eiSos
Würth Elektronik gives free, no-registration CAD, EDA and simulation models for passives, EMC and connectors; REDEXPERT simulates 36+ component modules.
At a glance
- Readiness
- L1 · Rigid-body ready
- Rationale
- Würth Elektronik offers CAD files, EDA models and application simulation models for passives, EMC/magnetic components and connectors, free with no registration; the 3D geometry gives extractable mass and collision shells, hence L1. The REDEXPERT online platform additionally provides behavioural simulation models from real measurements (inductors, EMI filters, power magnetics, core loss) at L2, delivered alongside the 3D geometry.
- Scale
- Covers passives, EMC/magnetic components and connectors across the portfolio; CAD files, EDA models and application simulation models are free with no registration; REDEXPERT spans 36+ component modules and 20+ simulation apps (inductors, EMI filters, power magnetics, core loss). (The 36+ modules / 20+ apps figures come from Würth's official EDA award page and REDEXPERT intro; 'free CAD/EDA/simulation models, no registration' is from the Würth Toolbox design-tools page. Würth publishes no total model count, so coverage is stated by product line and platform. Checked 2026-10-31.)
- License
- Proprietary but free — CAD/EDA/simulation models are free for design, but sales are to businesses, traders, freelancers and public institutions only (not consumers); IP belongs to Würth Elektronik and may not be redistributed. REDEXPERT models are based on real measurements in Würth's labs worldwide, yet fitness for every operating condition is not guaranteed and models and results must be validated by the user.
- Access
- Open
- Formats
- step · iges · other
- Runtimes
- other
- Physics properties
- Collision geometryMass / inertiaElectrical
- Domain
- Electromagnetics / Power
- Published
- 2026-10-31
- Updated
- 2026-10-31
Why it is listed
Würth Elektronik is unusual among component vendors because it ships not only 3D CAD but also EDA and measurement-based simulation models in one place, which is exactly what an electronics digital twin needs: geometry for layout and validated behavioural models for circuit simulation.
Readiness assessment
The component libraries cover passives, EMC/magnetic parts and connectors with CAD, EDA and application-specific simulation models, free and with no registration, so extractable-mass 3D geometry is available — that is L1. On top of that, REDEXPERT is an L2 behavioural-simulation layer: real-measurement models for inductors, EMI filters, power magnetics and core loss that can be dropped into circuit simulators, making Würth the strongest EDA-oriented entry in this batch.
Practical notes
Use the Würth Toolbox / design-tools page to reach CAD, EDA and simulation libraries; REDEXPERT runs in the browser, no install, multiple languages. Partner platforms (Altium 365, GitHub repos for Altium/Cadence/Eagle/KiCad/LTSpice/Pspice/QSpice, SnapMagic, Traceparts, UltraLibrarian) mirror the same libraries, which is convenient if your toolchain is already wired to one. Always validate models against the datasheet; Würth sells only to businesses, not consumers.
Disclaimer: license and usage terms follow the official source — verify them yourself before use. This site indexes and links only; it does not host or mirror any asset file.
License and usage terms are those of the official source — verify before use. No asset file is hosted or mirrored on this site.