Ferroxcube
Planar E cores and accessories
E38/8/25
CORES
Effective core parameters of a set of E cores
38.1 ±0.76
handbook, halfpage
SYMBOL
PARAMETER
core factor (C1)
VALUE UNIT
0.272
mm−1
10200 mm3
30.23 min.
Σ(I/A)
Ve
7.6
±0.2
effective volume
effective length
effective area
4.45 ±0.13
8.26
±0.13
Ie
52.4
194
194
≈ 25
mm
mm2
mm2
g
Ae
Amin
m
minimum area
mass of core half
25.4 ±0.51
CBW409
R0.64 ref. typ.
R0.81 ref. typ.
R0.64 ref. typ.
Dimensions in mm.
Fig.1 E38/8/25 core half.
Effective core parameters of an E/PLT combination
SYMBOL
PARAMETER
core factor (C1)
VALUE UNIT
Σ(I/A)
Ve
0.226
8460
43.7
194
mm−1
mm3
mm
mm2
mm2
g
handbook, halfpage
38.1 ±0.76
effective volume
effective length
effective area
minimum area
mass of plate
3.81 ±0.13
Ie
Ae
Amin
m
194
≈ 18
Ordering information for plates
GRADE TYPE NUMBER
3C90
25.4 ±0.51
PLT38/25/4-3C90
PLT38/25/4-3C92
PLT38/25/4-3C93
PLT38/25/4-3C94
PLT38/25/4-3F3
PLT38/25/4-3F4
3C92
3C93
3C94
3F3
CBW410
R0.64 ref. typ.
3F4
Dimensions in mm.
Fig.2 PLT38/25/4.
2004 Sep 01
2
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