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Products » Magnetec’s Materials » LC Series »

LC Series

New standard range of NANOPERM® based LC-series nanocrystalline cores is developed specially for making small size common-mode chokes. Use of LC series cores as magnetic circuits of common-mode chokes gives a number of advantages as compared with a use of high-permeability ferrites.

Main advantages: Significant decrease of geometrical dimensions, of weight, higher range of operating temperatures and high stability of parameters. More detailed description of advantages see here.

Sizes of nanocrystalline core based chokes in comparison with ferrite based chokes:

Sizes of nanocrystalline core based chokes in comparison with ferrite based chokes

Standard (Type – Size) Series

Standard (type – size) series of LC nanocrystalline cores issued by Magnetec Co.

Type   Core’s dimensions
od x id x h [mm]
Dimensions
in protective casing

OD x ID x H [mm]
Lfe [cm] Afe [cm²] Al @ 10kHz [μH] Standard packing
[pcs]
M-306 16 x 11 x 5 18,4 x 8,6 x 7,0 4,19 0,1 5,9 - 11,8 990
M-307 20 x 15 x 5 22,4 x 12,6 x 7,5 5,46 0,1 4,5 - 9,1 675
M-308 25 x 20 x 5 27,7 x 17,1 x 7,5 7,04 0,1 3,5 - 7,0 567
M-309 30 x 25 x 5 32,7 x 22,0 x 7,5 8,62 0,1 2,8 - 5,7 315
M-310 40 x 35 x 5 42,5 x 31,8 x 7,5 11,8 0,1 2,1 - 4,2 216
M-333 50 x 45 x 5 52,2 x 41,8 x 7,5 14,9 0,1 1,6 - 3,3 135
M-334 60 x 55 x 5 62,0 x 51,6 x 7,5 17,7 0,1 1,3 - 2,8 100
M-335 70 x 65 x 5 72,0 x 61,4 x 7,5 20,9 0,1 1,1 - 2,3 80

Cores are issued in protective plastic casing (C-type).

Examples of Developed common-mode Chokes

The recommended development versions for common-moded chokes based on magnetic circuits made of LC series nanocrystalline cores are listed below.

Operating Current* [A] - M-306 M-307 M-308 M-309 M-310 M-333 M-334 M-335
2 N:
dcu [mm]:
Lnom [mH]:
50
0,4
2 x 22
79
0,5
2 x 40
116
0,5
2 x 67
168
0,6
2 x 115
265
0,7
2 x 210
- - -
4 N:
dcu [mm]:
Lnom [mH]:
27
0,6
2 x 6,0
42
0,7
2 x 11
62
0,8
2 x 19
79
0,8
2 x 25
130
1,0
2 x 50
178
1,0
2 x 75
215
1,12
2 x 90
-
6 N:
dcu [mm]:
Lnom [mH]:
18
0,7
2 x 2,5
28
0,8
2 x 5,0
42
0,9
2 x 8,8
59
1,0
2 x 14
86
1,24
2 x 22
113
1,4
2 x 30
160
1,4
2 x 50
189
1,6**
2 x 59
8 N:
dcu [mm]:
Lnom [mH]:
13
0,8
2 x 1,4
20
1,0
2 x 2,5
31
1,12
2 x 4,8
42
1,12
2 x 7,0
66
1,4
2 x 13
92
1,4
2 x 20
116
1,6**
2 x 26
145
1,8**
2 x 35
10 N:
dcu [mm]:
Lnom [mH]:
- 16
1,12
2 x 1,5
25
1,24
2 x 3,0
32
1,24
2 x 4,0
50
1,4
2 x 7,5
75
1,6**
2 x 13
88
1,8**
2 x 15
115
2,0**
2 x 22
12 N:
dcu [mm]:
Lnom [mH]:
- - 20
1,4
2 x 2,0
28
1,4
2 x 3,0
45
1,6**
2 x 6,0
65
1,8**
2 x 10
75
1,8**
2 x 11
92
2,0**
2 x 14
14 N:
dcu [mm]:
Lnom [mH]:
- - - 25
1,6**
2 x 2,5
41
1,8**
2 x 5,0
53
2,0**
2 x 6,5
68
2,0**
2 x 9,0
85
2,0**
2 x 12
16 N:
dcu [mm]:
Lnom [mH]:
- - - 20
1,6**
2 x 1,5
30
1,8**
2 x 2,7
45
2,0**
2 x 4,8
58
2,2**
2 x 6,5
74
2,2**
2 x 9,0

* — Specified value of operating current relates to common-mode choke not having a forced cooling.

Used denominations:
N — number of winding’s turns
dcu — copper wire’s cross section diameter (it is recommended to use a licentrate)
Lnom — nominal value of common-mode choke winding’s inductance

 
NORTH-WESTERN LABORATORY: NEWS
 
05.06 09 
Epcos has developed a new N95 power ferrite material with an exceptionally low power loss.



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02.02 09 
New Epcos ferrite E core size : N87 E16/8/7,8 B66502GX187



 
 


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