Ferroxcube
EFD cores and accessories
EFD15/8/5
CORES
Effective core parameters
SYMBOL
PARAMETER
core factor (C1)
VALUE UNIT
handbook, halfpage
7.5
5.5
0.25
Σ(I/A)
Ve
2.27
510
mm−1
mm3
mm
mm2
mm2
g
0.15
effective volume
effective length
effective area
Ie
34.0
15.0
12.2
≈ 1.4
Ae
15 0.4
Amin
m
minimum area
mass of core half
11 0.35
5.3
0.15
4.65
0.15
0.2
2.4
0.1
CBW366
Dimensions in mm.
Fig.1 EFD15/8/5 core half.
Core sets
Clamping force for AL measurements, 20 5 N.
AL
AIR GAP
(µm)
GRADE
(nH)
µe
TYPE NUMBER
3C90
63 5%
100 8%
160 10%
950 25%
63 5%
≈ 115
≈ 180
≈ 290
≈ 1700
≈ 115
≈ 180
≈ 290
≈ 1700
≈ 2070
≈ 1520
≈ 115
≈ 180
≈ 290
≈ 1400
≈ 1130
≈ 115
≈ 180
≈ 290
≈ 720
≈ 720
≈ 400
≈ 220
≈ 120
≈ 0
EFD15/8/5-3C90-A63-S
EFD15/8/5-3C90-A100-S
EFD15/8/5-3C90-A160-S
EFD15/8/5-3C90-S
3C94
≈ 400
≈ 220
≈ 120
≈ 0
EFD15/8/5-3C94-A63-S
EFD15/8/5-3C94-A100-S
EFD15/8/5-3C94-A160-S
EFD15/8/5-3C94-S
100 8%
160 10%
950 25%
1140 25%
850 25%
63 5%
3C95
3C96
3F3
≈ 0
EFD15/8/5-3C95-S
≈ 0
EFD15/8/5-3C96-S
≈ 400
≈ 220
≈ 120
≈ 0
EFD15/8/5-3F3-A63-S
EFD15/8/5-3F3-A100-S
EFD15/8/5-3F3-A160-S
EFD15/8/5-3F3-S
100 8%
160 10%
780 25%
630 25%
63 5%
3F35
3F4
≈ 0
EFD15/8/5-3F35-S
≈ 360
≈ 190
≈ 90
≈ 0
EFD15/8/5-3F4-A63-S
EFD15/8/5-3F4-A100-S
EFD15/8/5-3F4-A160-S
EFD15/8/5-3F4-S
100 8%
160 10%
400 25%
400 25%
3F45
≈ 0
EFD15/8/5-3F45-S
2008 Sep 01
2