---- June 16th 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.


Current rating of 0.38 to 2.2 amps AC. Inductance of 1 to 9 mH.

20H Series Common Mode Filter.
Line Filter for filtering common mode power line noise

  • Very Low Cost single piece ferrite design
  • Zero fringing losses due to use of single piece zero gap ferrite core and winding on split bobbin
  • Designed to meet IEC 950 specifications
  • Di-electric Breakdown of 2500 Vac
  • Temperature range of - 40 deg C to 130 deg C
  • Current Rating of 0.55 Amps to 2.2 Amps
  • DCR of 0.035 ohms to 0.55 ohms
  • Inductance of 0.1 mH to 9 mH
  • Height of 19 mm ( 0.75" ). Length x Width of 23 mm (0.9" )
  • Mounting base : 13 x 10 mm ( 0.5" x 0.4" )


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

1) No tooling or set up fees required for standard parts
2) Minimum order : $25.00. Samples available for large OEMs
3) Typical Delivery: stock to 6 weeks


Please see pdf files for details. See link below for some sample PDF files.


Part Numbering

20H - 9K0

20 : 20 mm total height
H : Horizontal mount
9K0- Inductance of 9 mH

) The prices shown below are for low volume quantity. Please call 800-377-3244 or
email sales@coilws.com for larger volume OEM pricing.
) Our large OEM pricing is extremely competitive. We will meet or beat any competitors prices with better deliveries
) Custom designs are available to meet any of your requirements. Please contact us
) The data shown below can be sorted by Part Number, Inductance, Rated Current, DRC, or any of the columns. To sort, please click on the column headings ( first row ). To sort "Part Number" in ascending order, click "Part Number" once. Click "Part Number" once again to sort it in descending order. Click on "Inductance" to sort Inductance column in ascending or descending order, etc..


Part Number Inductance Current Rating
Max DCR No. Turns Wire Size
Diameter mm
Dimension 3D Model Quantity
on hand
20H-9K0 9mH 0.55 Amps 0.55 ohm 65 0.30 23 x 23 x 19mm 3D STEP 231 $1.65
Buy Now
20H-6K8 6.8mH 0.75 Amps 0.45 ohm 55 0.35 23 x 23 x 19mm 3D STEP 245 $1.65
Buy Now
20H-5K6 5.5999mH 0.75 Amps 0.40 ohm 52 0.35 23 x 23 x 19mm 3D STEP 1 $1.65
Buy Now
20H-2K2 2.2mH 1.25 Amps 0.14 ohm 30 0.45 23 x 23 x 19mm 3D STEP 27 $1.65
Buy Now

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)