Developer with blue lab coat sits in front of PC and examines a component

Design Tools

Do You Need Design-In Support?

The Following Tools and Libraries Make Component Search and Selection Easier for You

With our free design tools, we make it easier for you to select the right products and technologies and provide you with useful tools.

Design Software


The online platform for easy component selection, simulation and design-in with high-precision component and circuit models.


Design Tools in the Market
Developers hold a circuit board in their hands and look at it closely



Import the Standard Stackups Into Your Eda Software at the Push of a Button. This Way, the Data Is Available to You Immediately and in the Current Revision. We Keep the Digital Stackups Ready for You for Various Technologies.

Simple, Fast and Available Free of Charge

Component Libraries for Electronic Components

Start With Your Design-In

We offer you a wide variety of models and simulation models so that you can simulate and test your circuit or application in the common programs. From CAD files to EDA models to application-specific simulation models, everything is available to you free of charge.

No registration is required for use. Your advantage: You not only get components directly from the manufacturer, but also article number specific simulation files based on real measured values.

In our worldwide laboratories the measurements and determination of electrical values and data take place under real conditions. In addition, we offer you detailed guidelines for all simulation files in which you will learn how to integrate and use the models.

Product Selection Tools

The Fast Way to Your Desired Component

IC Reference Design Search

Use the reference design search to find the Würth Elektronik components recommended by the IC manufacturer for fast and reliable development of your product!

Applications & Industries Guide

Find the right components for your application as well as useful tips on EMC and layout with the Würth Elektronik application guide. With free samples of the components you need, you can test your circuit quickly and easily.

Cross-reference Search

With our cross-reference search, we help you quickly find out which components from other manufacturers can be replaced by Würth Elektronik components.

One Click Selection Guide

One look - one click: the overview for all electronic and electromechanical components