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