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CWSBYTEMARK
- August 15th 2018 -
Call Today Toll Free: 1 (800) 377-3244
We Are Available Monday to Friday From 8 a.m.- 5 p.m., Pacific Time
E-mail your questions and requirements at sales@cwsbytemark.com

Laminations

EI Series


Stamped Transformer Lamination

CWS Bytemark stamped lamination are made of the highest quality of silicon steel available in the industry. These lamination are used by engineers to design low frequency (50/60 Hz) transformers and inductors. Applications are in power supplies, electronics, transportation and communications. Most of the popular sizes are available from stock in our warehouse in Orange, California and are available for immediate pick up or shipment. The table below shows the sizes that are stocked. The quantities available shows the actual quantity in stock and they changed every day as new shipment goes in and out of our warehouse. Our pricing is the most competitive in the market now, and we offer you, our customers, good cost savings to make your product more competitive in the market without sacrifices in the level of quality. Other shapes and thickness are available as we do custom tooling. We can also do stacked lamination using progressive die and tooling. The grain oriented steel which is M6 material is available in 29 gauge as standard thickness. The non grain oriented M19, and M50 are available in 29 and 26 guage.

Useful Design Formulas
Bm = 3.489E x 106NfAcKs Gausses L = 3.192 x 10-8΅ N2AcKs Henrys
E = 2.866 x 10-7 Bm N f Ac Ks volts N = 3.489 x 106Bm f Ac Ks turns
H = 0.4947 N I Oersteds ΅ = BH Gauss/Oersted

Legend
Ac = core cross section area (center leg width x stack heigh) inch2 Bm = maximum flux desnity, Gauss
= mean length of flux path, inch E = RMS sine wiave voltage of winding
f = sine wave frequency, Hertz H = magnetizing force, Oersted
Ks = lamination stacking factor (Ks x Ac = effective core area) L = inductance, Henry
I = current, ampere N = number of turns in winding
΅ = permeability (CGS system), Gauss/Oersted

Silicon Steel Alloys
ASTM Thickness (in mils) Description
M-6 .014 Grain oriented 3.3% SiFe.
M-19 .025 Non oriented silicon steels with 1.8 to 3.0% Si.
.018 The fully processed grades have higher Si content and
M-22 .025 are harder, Rb>75, after the final anneal. They are
.018 available varnish coated. The semi processed grades
M-27 .025 have a phosphate insulation, are always annealed after
.018 stamping, yielding high permeability, and lower core loss
M-36 .025 for a given silicon content. This table lists only the
.018 semiprocessed grades.
Low Carbon Steel Alloys
ASTM Description
M-50 Low carbon steel insulated .025, 2.7-3.2W/#, 7VA#
M-55 Low carbon steel insulated .025, 3.7-4.2W/#, 7VA/#
M-56 Low carbon steel insulated .025, 4.3-4.8W/#, 8VA/#
M-65 Unannealed low carbon, .025, 6.5W/#, 15VA/#


  Part Number Quantity
on hand
Price  
EI-100 26 M19 7625.27 $0.97
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EI-100 26 M6 0 $0.93
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EI-100 26 M6 0 $0.93
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EI-100 29 M6 2731.62 $2.10
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EI-112 26 M19 8096 $0.97
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EI-112 26 M50 7908 $0.95
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EI-112 29 M6 3758 $2.10
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EI-125 26 M19 18399 $0.97
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EI-125 26 M50 10884 $0.95
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EI-125 29 M6 0 $2.10
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EI-137 26 M19 15839 $0.97
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EI-137 26 M50 8212 $0.95
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EI-137 29 M6 578 $2.10
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EI-150 26 M19 10289 $0.97
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EI-150 26 M50 13173 $0.95
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EI-150 29 M6 4189 $2.10
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EI-175 26 M19 9892 $0.97
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EI-175 26 M50 330 $0.95
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EI-175 29 M6 7669 $2.10
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EI-2.4 26 M19 6854 $0.97
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EI-2.4 29 M19 150 $0.97
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EI-2.4 29 M6 3365 $2.10
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EI-212 26 M19 845.24 $0.97
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EI-212 26 M50 500 $0.95
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EI-300 26 M50 500 $0.95
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EI-400 26 M19 580 $0.97
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EI-400 29 M6 0 $2.10
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EI-50 26 M19 97.2 $1.14
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EI-50 26 M50 4174 $1.04
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EI-62 26 M19 4060 $0.97
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EI-62 29 M6 84 $2.10
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EI-75 26 M19 7707 $0.97
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EI-75 29 M6 2158 $2.10
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EI-87 26 M19 12688 $0.97
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EI-87 29 M6 0 $2.10
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Disclaimer: CWS Bytemark 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 Bytemark 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 Bytemark highly recommend 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.

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 www.P65Warnings.ca.gov.


Any Comments, Suggestions or Questions? Contact us! Email: sales@cwsbytemark.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 (C)2008, CWS Bytemark
Updated 2013 Jan. Rev. V3.1
.