南京新康达磁业有限公司 Nanjing New Conda Magnetic Industrial Co.Ltd

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NK(FeSi)MPC Catalog -English

NK（FeSi）Magnetic Powder Cores

 

     Compare to FeNi (High Flux) cores NK cores have almost the same DC-bias properties, slightly higher core losses, marked lower prices and better price to performance ratio. NK cores have much better DC-bias properties than sendust cores. Although higher than sendust core’s the core loss of HK is lower than iron powder core’ remarkably.
     NK (FeSi) magnetic powder cores developed and manufactured by NCD (Nanjing New Conda Magnetic Industiral Co.,Ltd.) have excellent DC-bias properties and lower core losses which are widely used in the fields such as inverters in PV power system and wind power system, high power UPS, active power filters, power systems of new energy automobile and rail transportation, elevator power supply, etc.
     NK cores are made with Fe-Si alloy powder mixed with inorganic insulating materials.  Many air gaps are distributed  uniformly within the cores. Compare to the same kind products NK cores have better DC-bias properties and higher reliability.

Material Characteristics

Material Grade

NK014~NK075

Permeability

14～75

Saturation Flux Desity 

16000Gs

Curie Temperature

600 ℃

Core Loss (NK060)

(50kHz, 100mT)

600mW/cm3 (Typical)

Operating Temperature Range

-55~200 ℃
 

 
 
Core Loss (NK060)功功率
 
 

Permeability vs. DC Magnetizing Force
 
 

Permeability vs. Frequency
 
 

Permeability vs. Temperature
 
 

DC-Bias Properties: NK060 and CH060(CSC)
 
 
 

■ Core Identification
 

Core Model (Example)

Material Grade

Permeability

Coating Color

NK075

75

Brown

NK060

60

NK050

50

NK026

26

NK014

14
 

 

■ Ring Core Size

 

Core Model

Before Coating

After Coating

Cross Section

Ae(cm2)

Path Length

le(cm)

Volume

Ve(cm3)

OD.

(mm)

ID.

(mm)

HT.

(mm)

OD.max

(mm)

ID.min

（mm）

HT.max

(mm)

NK127□□□

12.70

7.62

4.75

13.50

7.00

5.45

0.1140

3.12

0.356

NK166□□□

16.60

10.20

6.35

17.40

9.50

7.11

0.1920

4.11

0.789

NK173□□□

17.30

9.65

6.35

18.00

9.00

7.11

0.232

4.14

0.960

NK203□□□

20.30

12.70

6.35

21.10

12.10

7.11

0.226

5.09

1.15

NK229□□□

22.9

14.0

7.62

23.60

13.40

8.37

0.331

5.67

1.88

NK234□□□

23.6

14.4

8.89

24.30

13.70

9.70

0.388

5.88

2.28

NK270□□□

26.9

14.7

11.20

27.60

14.10

11.90

0.654

6.35

4.15

NK330□□□

33.0

19.9

10.7

33.80

19.30

11.61

0.672

8.15

5.48

NK358□□□

35.8

22.4

10.5

36.71

21.50

11.28

0.678

8.98

6.09

NK400□□□

39.9

24.1

14.5

40.70

23.30

15.37

1.072

9.84

10.5

NK467□□□

46.7

24.1

18.0

47.64

23.32

18.92

1.990

10.74

21.37

NK468□□□

46.7

28.7

15.2

47.64

27.92

16.13

1.340

11.63

15.58

NK508□□□

50.8

31.8

13.3

51.80

30.80

14.40

1.251

12.73

15.93

NK571□□□

57.2

26.4

15.2

58.00

25.60

16.10

2.29

12.50

28.62

NK572□□□

57.2

35.6

14.0

58.00

34.74

14.86

1.444

14.30

20.65

NK777□□□

77.8

49.2

12.7

78.95

48.20

13.9

1.76

19.6

34.5

NK778□□□

77.8

49.2

15.9

78.95

48.20

17.1

2.21

19.6

43.4
 

 ■ Inductance Factor AL (nH/N2)

 

Permeability

  26

  60

  75

NK127□□□

12

27

34

NK166□□□

15

35

43

NK173□□□

19

43

53

NK203□□□

14

32

41

NK229□□□

19

43

54

NK234□□□

22

51

63

NK270□□□

32

75

94

NK330□□□

28

61

76

NK358□□□

24

56

70

NK400□□□

35

81

101

NK467□□□

59

135

169

NK468□□□

37

86

107

NK508□□□

32

73

91

NK571□□□

60

138

172

NK572□□□

33

75

94

NK777□□□

30

68

85

NK778□□□

35

85

107
 Note: Tolerance of AL is ±8%.