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Amorphous Choke Cores with air gap(OC)

1. Features:
ØLarge DC bias characteristics,
ØPermeabilityμ=180~200
ØGood frequency and temperature characteristics
ØLow core loss

2. Applications:
ØOutput choke coil for SMPS
ØChoke coil for DC/DC converter
ØPFC choke for UPS
Ø Choke coil for adapter and battery charger
ØPFC choke for PDP TV set
Ø PFC choke for inverter circuit

3. Specifications and electric parameters

Grade

Core
dimensionsmm

Finished
dimensionsmm

Electric
 Parameters

ID

OD

H

ID

OD

H

AL(μH)

AT

5012A

12

20

5.0

9.7

22.5

8.0

0.085

180

5012B

12

20

8.0

9.7

22.5

11.0

0.120

180

5016

16

26

10.0

14.3

30.2

13.5

0.132

280

5020

20

32

10.0

17.5

34.5

13.5

0.120

350

5025A

25

40

12.5

23.0

45.0

16.0

0.150

370

5025B

25

40

15.0

23.0

45,0

19.0

0.200

370

5032

32

50

15.0

29.0

55.0

18.0

0.126

470

5040

40

64

15.0

37.8

67.5

19.0

0.160

600

5050

50

80

20.0

47.0

85,0

24.0

0.200

730

5056

56

92

25.0

53.0

97.0

29.0

0.250

800

  Technical parameter for winding choke

grade

Core
Dimensions
(mm)

Normal
 rated
Current I(A)

inductance
L(μH)

AL
(μH)

Wing
turns
N

5012B

12×20×8.0

     3.0
     5.0
     8.0
    10.0

    400
    155
     60
     40

0.115

60
37
23
19

5016

16×26×10

     3.0
     5.0
     8.0
    10.0
    15.0
    20.0

   1000
    300
    155
    100
     45
     25

0.133

87
48
34
28
18
14

5020

20×32×10

     5.0
     8.0
    10.0
    15.0
    20.0

    505
    255
    165
     75
     45

0.120

65
46
37
25
19

5025A

25×40×12.5

     5.0
     8.0
    10.0
    15.0
    20.0

    520
    255
    170
     75
     45

0.140

61
43
35
23
18

 Physical characteristic

Density
g/cm3

Curie
Temperature
Tc()

 

Crystallization
Temperature
Tx()

Saturation
Bs(T)

 Electrical  Resistivity
ρ(Ω-cm)

Saturation
 Magnetostriction
λs(10-6)

7.3

410

530

1.4

130

27

 

 

 
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