PFC toroidal chokes 1A - 250A


Datasheet as PDF
Toroidal chokes for application at higher frequencies up to 150 kHz

 

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Fields of application


In primary and secondary clocked switch mode power supplies, not controlled and unregulated power supplies with transformers, electronic ballast for fluorescent lamps, U-coverters, line-commutated converters (also classic I-converters), phase angle control dimmers and many more.


Description


PFC-chokes are one or two winding chokes with toroidal cores made of pressed soft magnetic powder material. The following materials are often used:
- MPP (79%-81% Ni, 17 % Fe, 2%-4% Mo)
- High Flux (50% Fe, 50% Ni)
- Cool My, Sendust (FeSi9,6 Al5,4)
These cores are usable over a wide range of permeability and have a smaller Lo/Ln factor at lower permeabilites than at higher permeabilities. PFC toroidal chokes are storage chokes for the application in active power factor correction circuits. Lamination chokes e.g. EI types are used in passive PFC circuits in contrary. This enables power factors of devicesor systems with a cos φ 1. The chokes are conform to EN 61000-3-2. They are suitable for high frequencies up to 150 kHz. The toroidal core is the ideal geometric shape for the magnetic flux, this results in a low magnetic stray field and low losses. The winding is constructed for low voltages and is wound with low stray field. The dimensions are determined by the energy E = 0,5 L I².


Drawings and tables


open, lying version                                                                      potted, lying version

rd_28_1_mmrd_28_2_mmrp

Type

Current
[A]

No-load
inductance
[µH]

Rated
inductance
[µH]

Energy
[mWs]

DC-resistance
mOhm

Dimensions

Copper
weight
[g]

Total
weight
[g]

open version

version with housing

Num.
pins

f1

f2

f3

D

H

L

B

H

DR...4

1,00

5000

2200

1,1

725

28,0

13,0

32,6

33,2

19,2

4

30,0

20,0

5,0

17

45

DR...4

1,60

5000

2000

2,6

520

38,0

16,0

41,7

42,5

24,3

4

40,0

15,0

5,0

30

95

DR...4

2,00

2500

1200

2,4

265

37,0

15,0

41,7

42,5

24,3

4

40,0

14,0

5,0

41

115

DR...4

2,50

1000

550

1,7

140

31,0

16,0

41,7

42,5

24,3

4

40,0

14,0

5,0

17

65

DR...4

4,00

500

280

2,2

65

39,0

16,0

41,7

42,5

24,3

4

40,0

14,0

5,0

39

110

DR...4

6,30

130

80

1,6

17

31,0

15,0

32,6

33,2

19,2

4

30,0

14,0

5,0

17

65

DR...4

8,00

125

60

1,9

14

31,0

15,0

32,6

33,2

19,2

4

30,0

14,0

5,0

19

67

Technical changes and optimisation reserved. All details are guide values, variations are possible.

03/2012

 

open, upright version                                                                      potted, upright version

rd_28_3_mmrd_28_4_mmrp

Type

Current
[A]

No-load
inductance
[µH]

Rated
inductance
[µH]

Energy
[mWs]

DC-resistance
mOhm

Dimensions

Copper
weight
[g]

Total
weight
[g]

open version

version with housing

Num.
pins

f1

f2

f3

D

H

L

B

H

DR...4

1,00

5000

2200

1,1

725

28,0

13,0

32,0

35,0

20,5

4

17,5

27,5

5,0

17

45

DR...4

1,60

5000

2000

2,6

520

38,0

16,0

43,0

47,5

28,0

4

25,0

40,0

5,0

30

95

DR...4

2,00

2500

1200

2,4

265

37,0

15,0

43,0

47,5

28,0

4

25,0

40,0

5,0

41

115

DR...4

2,50

1000

550

1,7

140

31,0

16,0

37,0

40,0

25,5

4

22,5

30,0

5,0

17

65

DR...4

4,00

500

280

2,2

65

39,0

16,0

43,0

47,5

28,0

4

25,0

40,0

5,0

39

110

DR...4

6,30

130

80

1,6

17

31,0

15,0

37,0

40,0

25,5

4

22,5

30,0

5,0

17

65

DR...4

8,00

125

60

1,9

14

31,0

15,0

37,0

40,0

25,5

4

22,5

30,0

5,0

19

67

Technical changes and optimisation reserved. All details are guide values, variations are possible.

03/2012


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