EFD20 Datasheet, PDF (2/9 Pages) Sumida Corporation – General Power Transformer

Ferroxcube
EFD cores and accessories
EFD20/10/7
CORES
Effective core parameters
SYMBOL
PARAMETER
Σ(I/A)
core factor (C1)
V_e
effective volume
I_e
effective length
A_e
effective area
A_min
minimum area
m
mass of core half
VALUE UNIT
1.52
mm^−1
1460 mm³
47.0 mm
31.0 mm²
29
mm²
≈ 3.5 g
handbook, halfpage
7.7
10 _0.25
0.15
6.65 _0.17
0.15
20 0.55
15.4 0.5
8.9
0.2
MGC345
3.6
0.15
Dimensions in mm.
Fig.1 EFD20/10/7 core half.
Core halves
A_L measured in combination with a non-gapped core half, clamping force for A_L measurements 20 ±10 N, unless stated
otherwise.
GRADE
3C90
3C94
3C95
3C96
3F3
A_L
(nH)
63 ±3%⁽¹⁾
100 ±3%
160 ±5%
250 ±8%
315 ±10%
1300 ±25%
63 ±3%⁽¹⁾
100 ±3%
160 ±5%
250 ±8%
315 ±10%
1300 ±25%
1540 ±25%
1200 ±25%
63 ±3%⁽¹⁾
100 ±3%
160 ±5%
250 ±8%
315 ±10%
1200 ±25%
µ_e
≈ 76
≈ 121
≈ 193
≈ 302
≈ 380
≈ 1570
≈ 76
≈ 121
≈ 193
≈ 302
≈ 380
≈ 1570
≈ 1865
≈ 1450
≈ 76
≈ 121
≈ 193
≈ 302
≈ 380
≈ 1450
TOTAL AIR GAP
(µm)
≈ 960
≈ 510
≈ 280
≈ 160
≈ 120
≈0
≈ 960
≈ 510
≈ 280
≈ 160
≈ 120
≈0
≈0
≈0
≈ 960
≈ 510
≈ 280
≈ 160
≈ 120
≈0
TYPE NUMBER
EFD20/10/7-3C90-E63
EFD20/10/7-3C90-A100
EFD20/10/7-3C90-A160
EFD20/10/7-3C90-A250
EFD20/10/7-3C90-A315
EFD20/10/7-3C90
EFD20/10/7-3C94-E63
EFD20/10/7-3C94-A100
EFD20/10/7-3C94-A160
EFD20/10/7-3C94-A250
EFD20/10/7-3C94-A315
EFD20/10/7-3C94
EFD20/10/7-3C95
EFD20/10/7-3C96
EFD20/10/7-3F3-E63
EFD20/10/7-3F3-A100
EFD20/10/7-3F3-A160
EFD20/10/7-3F3-A250
EFD20/10/7-3F3-A315
EFD20/10/7-3F3
2008 Sep 01
2