---- September 25th 2023 ----

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.

Custom Winding - Ferrite Cores

How they look like
Ferrite Core types



  • MnZn for power applications - transformers, chokes (with gapping)
  • NiZn for EMI/EMC and RF applications
  • Permeabilities of 20 to 15,000 to cover all your imaginations
  • Coated cores (insulation for high permeability ferrites) and un-coated cores (for no stress on permeability)
  • E-cores, Pot Cores, Toroidal Cores, Antenna rods, Planar Cores, Surface Mount Cores, Oval rods, Rectangular rods, Square cores, Drum Cores
  • All sizes and shapes
  • Axial leads, radial leads, etc
  • Power Transformers, Switch Mode Power, High Frequency
  • Topologies: Flyback, Forward, Half Bridge, Full Bridge, Push Pull, Symmetrical Push Pull, Resonant
  • Common Mode Chokes, Output Inductor ( with gapping)
  • Receivers, Sensors,
  For more technical data, specifications, or to order these raw materials on line, please go to : www.cwsbytemark.com  

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)