Toroidal Cores
( 12~20 m/m )
Dimensions and Magnetic Parameters
AL-Value is measured at Frequency:
100 KHz. Voltage 100mv. Wire 1 Tums.

ITEM

Mechanical Dimension

Magnetic Dimensions

AL (nH/N²)

OD(mm)

ID(mm)

HT(mm)

Le

mm

Ae

mm²

Ve

mm³

NP1

กำ25%

N05

กำ25%

N07

กำ25%

N10

กำ30%

T12.7*7.3*6.35

12.70กำ0.30

7.30กำ0.30

6.35กำ0.30

31.42

17.15

539.00

1796

3592

5029

7184

T12.7*7.9*3.18

12.70กำ0.40

7.90กำ0.30

3.18กำ0.20

31.42

7.63

240.00

760

1550

2130

3100

T12.7*7.9*4.7

12.70กำ0.40

7.90กำ0.30

ก@4.7กำ0.30

31.42

11.11

349.00

1125

2300

3150

4600

T12.7*7.9*6.35

12.70กำ0.40

7.90กำ0.30

6.35กำ0.30ก@

31.42

15.36

483.00

1556

3112

4357

6435

T12.7*7.9*7.4

12.70กำ0.40

7.90กำ0.30

ก@7.4กำ0.30

31.42

17.76

558.00

1742

3750

5040

7500

T14*8.4*5

14.00กำ0.40

8.40กำ0.30

5.00กำ0.30

35.19

14.00

493.00

1250

2500

3500

5000

T14*8.4*6

14.00กำ0.40

8.40กำ0.30

6.00กำ0.30

35.19

16.80

591.00

1500

3000

4200

6000

T14*8.4*7

14.00กำ0.40

8.40กำ0.30

7.00กำ0.30

35.19

19.60

690.00

1750

3500

4900

7000

T15.8*8.9*4.7

15.80กำ0.40

8.90กำ0.30

4.70กำ0.25

36.80

15.30

563.00

1380

2760

3980

5520

T15.8*9.5*3

15.80กำ0.40

9.50กำ0.30

3.00กำ0.25

39.74

9.45

375.00

750

1500

2100

3000

T15.8*9.5*3.5

15.80กำ0.40

9.50กำ0.30

3.40กำ0.20

39.74

11.20

438.00

875

1750

2450

3450

T15.8*9.5*5

15.80กำ0.40

9.50กำ0.30

5.00กำ0.25

39.74

15.75

626.00

1250

2250

3500

5000

T15.8*9.5*6.8

15.80กำ0.50

9.50กำ0.30

6.80กำ0.30

39.74

21.42

851.00

1694

3387

4741

6774

T16*10*5

16.00กำ0.50

10.00กำ0.30

5.00กำ0.25

40.84

15.00

613.00

1010

2300

3200

4600

T16*10*6

16.00กำ0.50

10.00กำ0.30

6.00กำ0.30

40.84

18.000

735.00

1210

2760

3864

5520

T16*12*8

16.00กำ0.50

12.00กำ0.30

8.00กำ0.30

43.98

16.00

704.00

1000

2285

3200

4570

T18*10*7

18.00กำ0.50

10.00กำ0.40

7.00กำ0.30

43.98

28.00

1231.00

1760

4000

5600

8000

T18*10*10

18.00กำ0.50

10.00กำ0.40

10.0กำ0.30

43.98

40.00

1759.00

2510

5714

8000

11428

T18*12*8

18.00กำ0.50

12.00กำ0.40

8.00กำ0.30

47.12

24.00

1131.00

1400

3200

4480

6400

T20*10*5

20.00กำ0.50

10.00กำ0.40

5.00กำ0.20

47.12

25.00

1178.00

1470

3333

4666

6666

T20*10*7

20.00กำ0.50

10.00กำ0.40

7.00กำ0.30

47.12

35.00

1649.00

2050

4666

6532

9332

T20*10*8

20.00กำ0.50

10.00กำ0.40

8.00กำ0.30

47.12

40.00

1885.00

2350

5333

7466

10666

T20*10*10

20.00กำ0.50

10.00กำ0.40

10.0กำ0.30

47.12

50.00

2356.00

2930

6666

9333

13332

T20*10*12

20.00กำ0.50

10.00กำ0.40

12.0กำ0.30

47.12

60.00

2827.00

3400

7860

11190

15880

(1) Parylene coating is available on cores smaller than 6m/m.
(2) Toroidal cores > 6m /m can be coated with epoxy.  Colour code As right side.
(3) Dielectric breakdown voltage 1000 VAC min.
(4) Above table dimensions are nominal and given for uncoated cores.
(5) Approximate thickness per surface for epoxy coating is 0.3m /m approx. per surface.
(6) Approximate thickness per surface for parylene coating is 0.02m /m approx. per surface.       
Colour code
Material
colour
2500UI NP1
Yellow
5000UI NO5
Green
7000UI NO7
Dark Green
10000UI N10
Dark Green