---- 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.

CWS-5XXX Series


Planar Output Inductor using High Flux and MPP powder "distributed air gap" cores
Capable of handling very high DC bias current with lowest inductance roll off.
Helical Wound Bobbinless Surface Mount.
Co-planared SMT pre-tinned leads for directly soldered to PCB
Available as bulk packaged or in tape and reel packaging
Inductance ranges: 0.3 uH, 0.7uH and 2.0uH
DC Current Rating: 60 Amps, 50 Amps, 40 Amps
Custom designs for other inductances and current rating available. Please contact us.

CWS 5 Series : 80 Amps to 30 Amps Planar Output Inductor
Helical Winding on High Flux and MPP Powder Core

  • Super high current in industry's smallest package
  • Exceptional DC bias stability at high flux densities
  • Saturation Flux densities at 8,000 to 12,000 gausses
  • High Flux and MPP powder cores with distributed air gaps and very high temperature stability
  • Less than 1% inductance change from -60 deg C to + 140 deg C
  • Designed for commercial, industrial and military application
  • Operating temperature range: -55 deg C to +125 deg C
  • Inductance values : 0.3 uH to 2.0 uH +
  • Current rating : 80 Amps, 60 Amps, 50 Amp, 40 Amp
  • DC Resistance: 0.55 mili-ohm, 1.0 milli-ohm, 2.1 milli-ohm
  • Hi-Pot: 300 Vrms, winding to core

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

Download DC Bias Graphs in .PDF
CWS-4000A : DC Bias Graph
CWS-4001A : DC Bias Graph
CWS-5291B : DC Bias Graph
CWS-5292A : DC Bias Graph
CWS-5292B : DC Bias Graph

CWS-5293A : DC Bias Graph
CWS-5321B : DC Bias Graph
CWS-5322B : DC Bias Graph


1) No tooling or set up fees required for standard parts
2) Samples available for large volume OEMs. Pricing shown below is for sample quantities only. Pricing for large quantities may be significantly lower. Please call? or e-mail us for further information.
3) Availability: Stock to 4-6 weeks
4) Custom designs are available to meet any requirements.
5) Rated Current is based on a 40 deg C temperature rise at an ambient temperature of 125 deg C.
The High Flux and MPP cores are rated over 200 ged C. The helical frat wire's insulation is rated at 200 deg C.

You can sort the data shown below by clicking preferred header.

Part Number Inductance Current
Core Type Dimension
Length x Width
Width x Thickness
3D Model LT
on hand
CWS-5327A 7.6uH 12 Amps 14.00 milli ohms High Flux 0.54 x 0.47 0.22 0.11 x 0.01     Altium Library 50 $7.00
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CWS-5326A 4.7uH 17 Amps 7.00 milli ohms High Flux 0.54 x 0.42 0.22 0.10 x 0.01 3D STEP   Altium Library 0 $7.00
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CWS-5325A 3.9uH 21 Amps 4.90 milli ohms High Flux 0.54 x 0.42 0.22 0.10 x 0.02 3D STEP   Altium Library 243 $7.00
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CWS-5324A 2.7uH 21 Amps 4.20 milli ohms High Flux 0.54 x 0.42 0.22 0.10 x 0.02     Altium Library 766 $7.00
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CWS-5321B 2uH 40 Amps 2.10 milli ohms High Flux 0.52 x 0.54 0.21 0.10 x 0.02 3D STEP   Altium Library 25 $10.00
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CWS-5323A 1.3uH 40 Amps 1.80 milli ohms High Flux 0.54 x 0.42 0.22 0.10 x 0.02 3D STEP   Altium Library 0 $7.00
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CWS-5294A 1.2uH 50 Amps 1.10 milli ohms High Flux 0.55 x 0.68 0.23 0.16 x 0.03 3D STEP   Altium Library 285 $7.00
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CWS-5322B 0.7uH 50 Amps 0.90 milli ohms High Flux 0.52 x 0.55 0.21 0.10 x 0.03 3D STEP   Altium Library 200
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CWS-4200A 0.65uH 25 Amps 3.50 milli ohms MPP 0.31 x 0.31 0.24 0.05 x 0.05     Altium Library 608 $7.00
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CWS-5293A Rev H 0.65uH 60 Amps 0.70 milli ohms High Flux 0.55 x 0.75 0.23 0.12 x 0.04 3D STEP   Altium Library 4188 $5.00
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CWS-5291B 0.3uH 60 Amps 0.55 milli ohms High Flux 0.52 x 0.56 0.21 0.10 x 0.05     Altium Library 57 $7.00
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CWS-5292A 0.25uH 80 Amps 0.40 milli ohms High Flux 0.55 x 0.70 0.224 0.16 x 0.056     Altium Library 500 $5.00
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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 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)