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www.ccr.gov
CAGE Code: 5DME2
ITAR Registration Code: M28889

- December 17th 2017 -
Call: 1 (800) 377-3244
We Are Open Monday-Friday 8 am - 5 pm PT 
E-mail: sales@coilws.com


  • Careers
  • Ferrite and Nanocrystalline Common Mode Choke

    At CWS, we fulfill our customers’ common mode choke needs with accuracy and proficiency. We offer a variety of different phase common mode chokes designed to meet the project needs and also to provide top quality performance.

    Common Mode Choke Variety Phases Offered

    Chokes are simply air-on-ferro-magnetic iron core coils that can function as inductive reluctances. They are generally made for one or three phase use. CWS now offers them for two and four phase use as well.

    Common mode chokes are connected in series to the supply and return pairs of conductors. They are ideal for EMI filtering of signal and power lines. Most common mode chokes can endure high AC currents without compromising performance. Ferrite Choke and Nanocrystalline Choke

    Our earlier phase common mode choke designs are created with ferrite. A ferrite choke is a passive electric component that is capable of suppressing high frequency in electronic circuits.

    Our two phase, three phase, and four phase common mode chokes have been designed with a Nanocrystalline core, which drastically reduces the size of common mode chokes. This creates a stronger suppression of EMI as compared to the ferrite choke.

    Ordering Chokes

    At CWS, we make it our top priority to provide quality products within a short amount of time. Expert engineers are available to work with customers in designing custom common mode chokes. Once the common mode choke is created, samples are sent out to customers to test, ensuring that they fit the project need. Then, a final design is approved and shipped in small or large volume orders.

    Call us at 800-377-3244 for additional technical support, ordering questions, and product information.

    Thousands of standard off-the-shelf common mode chokes and inductors are usually available in stock for immediate shipment.
    CWS specializes in custom design of common mode chokes and inductors.
    Contact us for any custom common mode chokes and custom inductors requirements.
    We will respond within 24 to 48 hours.





    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 to www.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)