---- July 20th 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.

CM Series

- Available as through hole vertical or horizontal mounting
- Single layer wound on high permeability ferrite for widest frequency range
- Spacer provides 3mm creepage spacing to meet UL, CSA and IEC safety specifications
- All materials used are UL 94VO recognized.
- Dimension : Outside Diameter: 25mm. Width or Height: 11mm
- Inductance range from: 70 uH to 17 mH
- DCR : 9 milli ohms to 440 milli ohms
- Suitable for power line filtering and EMI/RFI suppression in SMPS
CM Series: 1 Amps to 60 Amps Common Mode Choke

  • Separated windings for minimum interwinding capacitance
  • Single layer windings for highest common mode impedance over the widest frequency range
  • Spacer provides 3 mm creepage distance for UL, CSA, IEC compliance
  • All materials used are UL94-VO recognized
  • 200 °C insulated solid wires used for high temperature operation
  • Operating temperature: - 40 °C to + 105 °C. Please call factory for 125 °C types
  • Suitable for 100 Khz to 500 Khz
  • Available in both vertical or horizontal mount
  • Application includes power line filtering, EMI/RFI for switch mode power supplies

  • Custom inductance values or current ratings are available.
  • For custom or special orders, the sizes may be different from those shown here
  • The prices shown below are for low volume quantity.
    Please call 800-377-3244 or email sales@coilws.com for larger volume OEM pricing.
  • Not all parts are in stock. If parts are out of stock, delivery can take up to 6 weeks.

Part Number Inductance Tolerance Max DC
DC Current
Rating (Amp)
3D Model Thermal Model LT Spice
on hand
CM-101U-19A 0.1mH ± 30% 1.3 19.0 0.8 uH 4.70 pF Ht=12.0, OD=27.5mm 3D STEP     25 $6.50
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CM-173U-1A 17mH ± 30% 440.0 1.0 75.0 uH 32.10 pF Ht=9.4, OD=24.0mm 3D STEP     5 $4.00
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CM-181U-15A REV.B 180uH ± 30% 2.5 15.0 1.2 uH 6.50 pF Ht=11.0, OD=26.0mm 3D STEP     15 $4.50
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CM-182U-4.5A REV.D1 1.8mH ± 30% 20.0 4.5 10.5 uH 15.30 pF Ht=10.0, OD=25.0mm 3D STEP     28 $6.50
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CM-322U-3A 3.2mH ± 30% 60.0 3.0 20.0 uH 16.80 pF Ht=9.4, OD=24.0mm 3D STEP     90 $4.00
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CM-471U-15A 470uH ± 30% 4.0 12.0 3.3 uH 9.11 pF Ht=12.7, OD=28.0mm 3D STEP     0 $4.50
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CM-881U-9AB-V 0.88mH Min. 6.5 9.0 5.5 uH 12.80 pF Ht=11.0, OD=26.0mm 3D STEP     0 $6.25
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CM-492U-2.3A 4.9mH ± 30% 75.0 2.3 27.3 uH 20.20 pF Ht=9.4, OD=24.0mm 3D STEP     31 $5.00
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CM-142U-7.5AV REV.C 1.2mH Min. 15.0 7.5 9.0 uH 10.30 pF Ht=13.0, OD=26.0mm 3D STEP     285 $6.60
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CM-650U-23A 0.065mH Min. 2.0 23.0 62.0 uH 16.80 pF Ht=14.0, OD=28.7mm 3D STEP     38 $5.50
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CM-332U-9A 3.3mH ± 30% 16.0 9.0 30.0 uH 55.00 pF Ht=12.0, OD=29.2mm 3D STEP     7 $4.00
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CM-161U-60A 160uH ± 30% 0.5 60.0 2.0 uH 145.00 pF Ht=21.5, OD=43.5mm 3D STEP     0 $26.60
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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 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)