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Nanocrystalline Block Cores

AM Super Cores are made by stacking iron-based nanocrystalline alloy ribbons or laminations. The laminations are banded together by an adhesive rated for a continuous operating temperature of 155°C or 180°C. The nanocrystalline alloy itself has a higher continuous operating temperature. These forms offer a unique combination of high saturation induction (1.25 T), high permeability, super lower core-loss and near zero noise.

AM Super Cores can be used in medium frequency (20 kHz~100KHz) and high power (up to 300 kW) PV inverters. These have core losses lower than those of 3% or 6.5% Si steels.

Properties:

Typical ribbon thickness (μm):  28            Density (g/cm3):  7.18

Thermal expansion Coef. (ppm/°C): 7.6        Crystallization temperature (°C):  550

Saturation Induction (T): 1.25                Electrical resistivity (μΩ.•cm):  130

Curie Temperature (°C): 410                  Continuous Operating Temperature (°C): 155

Core loss ( @20KHz,300mT): <13 w/kg

Dimensions:  unit (mm)

 

MIN (mm)

MAX ( mm)

tolerance  (mm)

 L

20

200

±0.5

 W

10

50

±0.5

 H

5

85

±0.2

 

AM-BC-

Length(+/-0.5)

Width(+/-0.3)

Height+/-0.2

Weightg

AM-BC-

Length+/-0.5

Width+/-0.3

Height+/-0.2

Weight(g)

1

90

25

55

790

10

25

25

55

220

2

100

30

85

1640

11

30

30

85

490

3

106

35

85

2030

12

35

35

85

670

4

110

30

30

635

13

30

30

25

140

5

120

40

40

1240

14

30

40

40

310

6

135

45

45

1760

15

35

45

45

455

7

140

35

36

1138

16

30

35

36

243

8

150

50

50

2420

17

30

50

50

484

9

155

45

40

1800

18

35

45

40

406

 

Stacking factor = 85 ± 3%

Cross-sectional area of the form = W x H x 0.85/100 cm2

Mass of the form = L x W x H x 0.85 x 7.18 / (1000 x 1000) kg

 

Attention: All the data listed in this catalogue are got from optimum-annealed samples. When these ribbons are made into cores, there may be some variation of the property according to processing technique. All the data here are only for references, but not for guaranty of any order. Cores with other specifications can be provided concerning to customer’s demand.


 
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