---- July 12th 2024 ----

CAGE Code: 5DME2
ITAR Registration Code: M28889
Call: 1 (800) 377-3244
Monday to Friday 8 A.M. - 5 P.M. (Pacific Time)
E-mail questions and requirements to: sales@coilws.com

Pricing is subject to change depending on product availability and backorders.
*Please Note: Items without price are listed for CWS' capability purposes.

LT Spice Common Mode Choke

LT Spice Common Mode Choke

Please download the LT SPICE Model from the table at the bottom of this page. Then, click the ZIP file to save it to your desktop or desired folder.

LT Spice Library models
Design engineers and product development engineers typically start with schematic design and do simulations to optimize their designs. This inductor SPICE model can help engineers model inductors in their circuit.
CWS provides this LT Spice simulation model so that design engineers can select the most optimal inductive component for the circuit design.

LT Spice – how it works

  • Analog devices provide the LT Spice Schematic and simulation platform (www.Analog.com) for easy circuit modeling. The LT SPICE platform has become an industry standard for many other simulation software and tools. This platform saves time, cost, and effort by minimizing re-spins of actual circuit hardware.
  • Many design engineers and educational institutions use LT Spice to design and simulate the circuits by importing the library components from various manufacturers.
    Various components manufacturers such as inductors, transformers, coils, capacitors, resistors, and other active and passive components have made SPICE Library of their components that users can download and link within their LT Spice circuit design to do the simulation.
  • For more details on the LT Spice, please visit http://www.analog.com/en/design-center/design-tools-and-calculators/ltspice-simulator.html
  • We suggest that designers download the latest version from the above link. Analog devises Inc. updates its software regularly to improve its design and simulation tools.

 How to use the LT Spice is provided in the above link from Analog Devices.


  • Coil Winding Specialist Inc www.CoilWS.com CWS Coils - Coil manufacturer.
  • LTspice Library for CWS Coils Common Mode Choke Version 1.1. 
  • Assembled on (April 2022) By Coil Winding Specialist Inc www.coilws.com 
  • This LTspice library contains C-Series Common mode Choke Part Numbers: Please keep in mind that real components can vary in the range given in the datasheets. 
  • The values are based on the data provided in the datasheet. 


Installation of COILWS Model Library 


Please make sure that LTspice software is not running and follow the below steps

  1. The zipped model library folder of the CWS_Spice_Library_CMM for LTspice comprises the following two folders: 
  2. - Sub: This folder contains the ASCII data file (C_CMM.lib) that represents the actual library
    • Copy and paste this file to C:Users"USER NAME"DocumentsLTspiceXVIIlibSub .
  3. - Sym: This contains the subfolder "CWS Comp.Chokes" which includes the symbol data files for the graphics information required by the graphic user interface.
    • Copy and Paste this file to C: Users"USER NAME"DocumentsLTspiceXVIIlibsym .
  4. On the next start of LTspiceXVII, open a New Schematic, Click on the Component Library (or press on F2), and find the [CWS Comp.Chokes] folder appears in the LTspice Component library.
  5. Double Click on [CWS Comp.Chokes] folder and choose your Part number.


  • ' "USER NAME" - this varies for each individual user's laptop/PC 
  • In the DEMO circuit attached below - in case the LTSpice shows any error/missing component - please add the 'DEMO Circuit Supplement Library file in the LTSpice folder as explained in the "Readme-Demo-Ckt-Simulation." 


  • The specific LT Spice models given in this file/folder are the property of Coil Winding Specilist Inc. COILWS.COM.
  • LT SPICE MODEL is an effective tool for testing product performance by simulation; however, it does not simulate product performance in all test environments and is not intended to be a replacement for testing the actual device by means of a test board or otherwise. 
  • Please refer to the datasheet for all electrical parameters.
  • Simulation results are for reference purposes only; the CUSTOMER shall perform thorough testing using the actual device. 
  • The LT Spice models will be updated as needed as new products are added - always download the latest version from the http://www.coilws.com website. 
  • The LT Spice software also will be updated without notice - refer to the software developer website for the latest versions.

Disclaimer: Coil Winding Specialist, Inc., its affiliates, agents, and employees acting on behalf of Coil Winding Specialist, Inc. (collectively, CWS) disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. CWS reserves the right at any time and from time to time to make changes to design, technical specification, or construction of any product listed on this website without notice. CWS also reserves the right to discontinue or limit sale of any product or service available throughout this website on temporary or permanently basis without notice. CWS highly recommends customers not to use its products offered on this website for inappropriate use and applications. Products should be tested for its suitability by prospective customers in all possible applications and conditions. Customers using or selling CWS products for use in other than recommended applications do so entirely at their own risk and agree to fully indemnify CWS from any damages arising or resulting from such use or sale.

WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go towww.P65Warnings.ca.gov.

Any Comments, Suggestions or Questions? Contact us!
Email: sales@coilws.com
CWS 353 West Grove Ave. Orange, California 92865
Call us Toll Free: 1-800-679-3184 or 1 (800) 377-3244

Tel: (714) 279-9010, Fax: (714) 279-9482

Copyright 2008, Coil Winding Specialist, Inc
Updated July, 2013

CAGE Code: 5DME2(Registered with www.ccr.gov)