EI Series
Legend
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.
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.
The table below shows the sizes that are stocked. The quantities available show the actual quantity in stock and they changed every day as new shipment goes in and out of our warehouse.
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 gouge.
Useful Design Formulas
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.
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.
The table below shows the sizes that are stocked. The quantities available show the actual quantity in stock and they changed every day as new shipment goes in and out of our warehouse.
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 gouge.
Useful Design Formulas
| Bm | = 3.489E x 106 ⁄ NfAcKs Gausses | L | = 3.192 x 10-8µ N2AcKs ⁄ ℓ Henrys |
| E | = 2.866 x 10-7 Bm N f Ac Ks volts | N | = 3.489 x 106 ⁄ Bm f Ac Ks turns |
| H | = 0.4947 N I ⁄ ℓ Oersteds | µ | = B ⁄ H Gauss/Oersted |
Legend
| Ac | = core cross section area (center leg width x stack heigh) inch2 | Bm | = maximum flux desnity, Gauss |
| ℓ | = 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 |
| µ | = permeability (CGS system), Gauss/Oersted |
Silicon Steel Alloys
| ASTM | Thickness (in mils) | Description |
| M-6 | 0.014 | Grain oriented 3.3% SiFe. |
| M-19 | 0.025 | Non oriented silicon steels with 1.8 to 3.0% Si. |
| 0.018 | The fully processed grades have higher Si content and | |
| M-22 | 0.025 | are harder, Rb>75, after the final anneal. They are |
| 0.018 | available varnish coated. The semi processed grades | |
| M-27 | 0.025 | have a phosphate insulation, are always annealed after |
| 0.018 | stamping, yielding high permeability, and lower core loss | |
| M-36 | 0.025 | for a given silicon content. This table lists only the |
| 0.018 | semiprocessed grades. |
Low Carbon Steel Alloys
| ASTM | Description |
| M-50 | Low carbon steel insulated 0.025, 2.7-3.2W/#, 7VA# |
| M-55 | Low carbon steel insulated 0.025, 3.7-4.2W/#, 7VA/# |
| M-56 | Low carbon steel insulated 0.025, 4.3-4.8W/#, 8VA/# |
| M-65 | Unannealed low carbon, 0.025, 6.5W/#, 15VA/# |
| Part Number | Quantity on hand |
Price | ||
|---|---|---|---|---|
EI-100 26 M19  |
-65 | $1.07 |
||
| EI-100 26 M6 |
0 | $0.93 |
||
| EI-100 26 M6 |
0 | $0.93 |
||
| EI-100 29 M6 |
1788.76 | $2.31 |
||
| EI-112 26 M19 |
0 | $1.07 |
||
| EI-112 26 M50 |
7908 | $1.05 |
||
| EI-112 29 M6 |
3733 | $2.31 |
||
| EI-125 26 M19 |
0 | $1.07 |
||
| EI-125 26 M50 |
95.76 | $1.05 |
||
| EI-125 29 M6 |
-7.5 | $2.31 |
||
| EI-137 26 M19 |
12387 | $1.07 |
||
| EI-137 26 M50 |
8180 | $1.05 |
||
| EI-137 29 M6 |
32 | $2.31 |
||
| EI-150 26 M19 |
0 | $1.07 |
||
| EI-150 26 M50 |
0 | $1.05 |
||
| EI-150 29 M6 |
319 | $2.31 |
||
| EI-175 26 M19 |
2192 | $1.07 |
||
| EI-175 26 M50 |
330 | $1.05 |
||
| EI-175 29 M6 |
5224 | $2.31 |
||
| EI-2.4 26 M19 |
17776 | $1.07 |
||
| EI-2.4 29 M19 |
150 | $1.07 |
||
| EI-2.4 29 M6 |
5407 | $2.31 |
||
| EI-212 26 M19 |
0.02 | $1.07 |
||
| EI-212 26 M50 |
500 | $1.05 |
||
| EI-212 29 M6 | 0 | $1.07 |
||
| EI-300 26 M50 |
500 | $1.05 |
||
| EI-400 26 M19 |
-35 | $1.07 |
||
| EI-400 29 M6 |
0 | $2.31 |
||
| EI-50 26 M19 |
9010.36 | $1.25 |
||
| EI-50 26 M50 |
2719.08 | $1.14 |
||
| EI-62 26 M19 |
551 | $1.07 |
||
| EI-62 29 M6 |
4527 | $2.31 |
||
| EI-75 26 M19 |
20609 | $1.07 |
||
| EI-75 29 M6 |
9990.6 | $2.31 |
||
| EI-87 26 M19 |
0 | $1.07 |
||
| EI-87 29 M6 |
2826 | $2.31 |
||
| UI-75 29 M6 | 788 | |
