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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

Spice Models / S-parameters

Coilcraft has measurement-based lumped element, netlist, and s-parameter models for reliable simulations.  We have also developed current-dependent saturation models for our soft-saturating molded power inductors and offer comprehensive model libraries for popular circuit simulators.

Benefits of Coilcraft model libraries

  • No need to build a schematic or assign lumped element values
  • Simply select the Coilcraft part number from a pull-down menu
  • The netlist is included when selecting the component

Select an Individual Part Model

Select a series and then a part number to see the model and/or s-parameters

These lumped-element (SPICE) models simulate the frequency-dependent behavior of Coilcraft inductors within the frequency range shown in the accompanying table for the individual selected inductor.

The models represent de-embedded measurements, as described below. Effects due to various different circuit board traces, board materials, ground planes or interactions with other components are not included and can sometimes have a significant effect when comparing the simulation results to measurements of the inductors using other production verification instruments and fixtures.

Lumped Element Modeling Method

Measurements were made using a 50 Ohm impedance analyzer. Fixture compensation was performed to remove fixture effects. No DC bias current was applied in any of the measurements. The lumped element values were determined by optimizing the simulation model to an average of the measurements. This method results in a model that represents as closely as possible the typical frequency-dependent behavior of the component within the model frequency range.

Additional information about the test setup used for measuring RF parts can be found in the respective series’ SPICE model PDF documentation.

Each model should only be analyzed at the input and output ports. Individual elements of the model are not determined by parameter measurement. The elements are determined by the overall performance of the lumped element model compared to the measurements taken of the component.

Disclaimer

Coilcraft makes every attempt to provide accurate measurement data and software, representative of our components, in a usable format. Coilcraft, however, disclaims all warrants relating to the use of its data and software, whether expressed or implied, including without limitation any implied warranties of merchantability or fitness for a particular purpose. Coilcraft cannot and will not be liable for any special, incidental, consequential, indirect or similar damages occurring with the use of the data and/or software.


eagleware.gif Coilcraft is a member of the Eagleware Model Access Partnership program which means that the most up-to-date models are included in each copy of GENESYS.
logo_modelithics_small_.gif Additional models for Agilent® ADS®, AWR Microwave Office and Eagleware GENESYS may be purchased from Modelithics. Free trials of these models may also be requested. Modelithics models allow simulation over a wide variety of substrate materials. Modelithics can also produce custom models for other Coilcraft product families. 
Nuhertz.png Coilcraft S-parameters and Spice models are used in Nuhertz Technology filter synthesis and analysis software, which includes automated Coilcraft parts selection and simulation with Coilcraft parts. Click here to download a customized version of Nuhertz Solutions FilterSolutions® software.
logo_optenni.gif Coilcraft S-parameters are used in Optenni Lab matching circuit generation and antenna analysis software, which includes automatic impedance matching tools and antenna bandwidth estimation.
systemvision_temp.gif Coilcraft inductor saturation models are included in the SystemVision® Cloud Simulator from Mentor Graphics. The models represent the soft-saturation of composite core inductors and hard-saturation of ferrite core inductors. Click here to see how a soft-saturation inductor reduces current switching transient spikes in a buck converter output stage.