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CAGE Code: 5DME2
ITAR Registration Code: M28889

- July 4th 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.

SFB Series

SFB series

A type of of switching frequency, high efficiency and high current DC-DC converters with designated industrial Full-Brick Standard footprint and pin compatibility. These converters can reach high power conversion. Combined power processing, control, synchronization, and enclosed packaging allow best cost-reduction, cost-effectiveness, and performance.

• High efficiency:
Synchronous Rectifier Topology
• Fixed switching frequency provides predictable EMI
• No life-span constrained Capacitor inside
• Single wire connection for Load Share
• No minimum load requirement
• Output current limit and short circuit protection
• Output over-voltage protection
• Remote sense for the output voltage
• Output voltage trim range of
-10%,and +10%
• Input under-voltage lockout
• Input-to-output isolation (2250V)
• Thermal shutdown

-RoHS compliant
-UL and EN pending

For technical information refer to:

Please contact us for any questions and more information by email, at or call us at 1(800) 377-3244

  Part Number Input
(V, typ.)
(A, full load)
(V, typ.)
(A, full load)
@ Full Load (typ.)
on hand
  SFB024120-60-E 18-36 33.3 12 60 720 90% 0
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  SFB024150-48-E 18-36 33.3 15 48 720 90% 0
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  SFB024240-30-E 18-36 33.3 24 30 720 90% 0
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  SFB024280-25-E 18-36 33.3 28 25.7 720 90% 0
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  SFB024480-15-E 18-36 33.3 48 15 720 90% 0
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  SFB270120-60-E 150-450 2.96 12 60 720 90% 0
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  SFB270150-66-E 150-450 3.70 15 60 900 90% 0
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  SFB270240-40-E 150-450 3.95 24 24 960 90% 0
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  SFB270280-34-E 150-450 3.95 28 34 960 90% 0
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  SFB270480-20-E 150-450 3.95 48 20 960 90% 0
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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 to

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