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CAGE Code: 5DME2
ITAR Registration Code: M28889

- July 9th 2020 -
Call: 1 (800) 377-3244
We Are Open Monday to Friday 8 A.M. - 5 P.M. (Pacific Time)
E-mail your questions and requirements at:

*Please contact us for available stock.
Stock quantity of zero may be reflected as it is not implemented yet.

CWS-112X Series

Designed using powder iron cores for high saturation flux
Normally our customer specify the specs (size, inductance, current)
and we built to meet the specs.
Inductance range from: 2.4 uH to 4.0 mH
Power handling range up to 500 watts

Open Toroidal Suppression Chokes and Toroidal Inductors for Triac Control Circuits used in Speed Control, Lighting Dimmer and similar applications

100 watts to 500 watts in power handling capabilities at 110Vac or 240Vac, 50/60 Hz

Background Information Toroidal Output Inductors.

  • Designed to meet UL 1283 and EN 133200 approvals
  • Designed using Iron Powder Cores for high saturation flux
  • Designed for commercial, industrial and military application
  • Operating temperature range: -55 deg C to +85 deg C
  • Inductance values : 2.4 mH to 4.0 mH. Other Values available
  • Power Handling at 110V or 240V: 100W, 250W, 400W and 500 watts
  • Low Cost


Click the button to see examples of our custom wound products. We wind anything to meet your needs.

Download Engineering Drawing in .PDF


1) No tooling or set up fees required for standard parts
2) Minimum order : $25.00. Samples available for large OEMs
3) Typical Delivery: 2 to 4 weeks



Outline Drawing and Schematic

See .PDF drawings

Part Numbering

CWS - 1120

CWS : Series
1120: Types


1) The prices shown below are for low volume quantity. Please call? 800-377-3244 or
email for larger volume OEM pricing.

2) Our large OEM pricing is extremely competitive. We will meet or beat any competitors prices with better deliveries

3) Custom designs are available to meet any of your requirements. Please contact us


  Part Number Inductance Current
at 110-240V
Inner Dia
Outer Dia
on hand
CWS-1121-250W 4.50 mH 1.0 - 2.0 A 250 watts 0.80 ohms 7.5 33 18.5 0 $8.00
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CWS-1120-100W 4.00 mH 1.0 - 1.5 A 100 watts 0.85 ohms 7.5 33 14.0 6 $8.00
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CWS-1122-400W 2.90 mH 1.5 - 3.0 A 400 watts 0.50 ohms 10.0 31 13.5 0 $8.00
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CWS-1123-500W 2.40 mH 2.0 - 4.0 A 500 watts 0.45 ohms 10.0 33 17.0 0 $8.00
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CWS-1126-960W 2.00 mH 4.0 - 8.0 A 960 watts 0.20 ohms 10.0 40 21.0 0 $8.00
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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

Any Comments, Suggestions or Questions? Contact us! Email:
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