---- February 8th 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.


Sendust/KoolMu Cores used.
Capable of handling very high DC bias current with minimal inductance roll off.
16,000 gauss Saturation Flux.
Through hole mount with pre-tinned leads that can be directly soldered to PCB
We build to meet your specs.
Also available in HiFlux, Mega/XFLUX, MPP cores upon request.

Custom Sendust/KoolMu - 1SN Power Inductors Series.
Through Hole Mounting Construction

  • Designed using high saturation and high temperature stability "High Saturation Flux Cores" with distributed air-gap
  • Excellent electromagnetic shielding due to toroidal design
  • Inductance values from 12.5uH to 2.2mH
  • Current rating from 5.0 Amps to 40.0 Amps
  • Temperature Rating: -55 deg C to +125 Deg C
  • Potted version available for military application
  • Custom designs are available to meet your specific requirements

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

1) No tooling or set up fees required for standard parts
2) FREE Samples available for large OEMs
3) Typical Delivery: 4 to 6 weeks

) The prices shown below are for sample 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 clicking each column header.Click once again to sort in reverse order.
5 ) "Inductance at 1 Khz" ( 2nd column from left in table below ) is the inductance measured at zero or very low DC bias current.
6 ) "Current Rating" ( 3rd column from left in table below ) is based on a 40 deg C temperature rise at an ambient temperature of 90 deg C. This is the DC bias current through the inductor that will cause the inductor will reach a max. temp. rise of 40 deg C. above ambient with some AIR FLOW.
7 ) The saturation current is at least 5 times the max current listed in 5) or 6) above, so instantaneous high current spikes can be tolerated by these inductors.
8) "Dimensions:"

  • A = Outer Dimension
  • B = Height
  • C = Vertical Mounting Hole Distance
  • D = Lead length
  • E = Lead Width
  • F = Horizontal Mounting Hole Distance

Part Number Inductance Current Rating DCR
A /B /C
In inches
D /E /F
In inches
on hand
CWS-1SN-13007 750uH 20.0 Amps 23.0 milli-ohms 640KHz 2.36/1.15 0.75/0.08/1.95 3D STEP Altium Library -4
Buy Now
CWS-1SN-12877 650uH 8.0 Amps 40.0 milli-ohms 795KHz 1.95/0.90 0.75/0.06/1.74   Altium Library 0
Buy Now
CWS-1SN-13004 120uH 35.0 Amps 20.0 milli-ohms 2.0MHz 3.00/2.00/1.35 15.00/0.10 3D STEP Altium Library 0
Buy Now
CWS-1SN-13031 50uH 15.0 Amps 9.0 milli-ohms 4900KHz 1.32 0.85/0.07/1.00     0
Buy Now
CWS-1SN-11382 46uH 20.0 Amps 12.0 milli-ohms >10MHz 2.09/1.95 0.50/0.06x0.13/0.87   Altium Library 1
Buy Now
CWS-1SN-11905 35uH 20.0 Amps 30.0 milli-ohms 7 MHz 1.02/0.47 0.50/0.04/0.40   Altium Library 1
Buy Now
CWS-1SN-11294 14uH 10.0 Amps 12 milli-ohms >10MHz 1.06/0.45 0.86/0.08x0.04/0.34   Altium Library 1
Buy Now
CWS-1SN-12278 12.5uH 40.0 Amps 3.0 milli-ohms >10MHz 2.03/0.93 0.20/0.16/0.04/1.38/0.40/0.60   Altium Library 1
Buy Now
CWS-1SN-11579 2.2mH 5.0 Amps 630 milli-ohms 543KHz 1.16/0.83 0.20/0.05/0.90x0.60   Altium Library 1
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)