EFD20 Datasheet, PDF (3/9 Pages) Sumida Corporation – General Power Transformer

Ferroxcube
EFD cores and accessories
EFD20/10/7
GRADE
3F35
3F4
3F45
A_L
(nH)
920 ±25%
63 ±3%⁽¹⁾
100 ±3%
160 ±5%
250 ±8%
315 ±10%
650 ±25%
650 ±25%
µ_e
≈ 1110
≈ 76
≈ 121
≈ 193
≈ 302
≈ 380
≈ 780
≈ 780
TOTAL AIR GAP
(µm)
≈0
≈ 900
≈ 450
≈ 230
≈ 120
≈ 80
≈0
≈0
TYPE NUMBER
EFD20/10/7-3F35
EFD20/10/7-3F4-E63
EFD20/10/7-3F4-A100
EFD20/10/7-3F4-A160
EFD20/10/7-3F4-A250
EFD20/10/7-3F4-A315
EFD20/10/7-3F4
EFD20/10/7-3F45
Note
1. Measured in combination with an equal gapped core half, clamping force for A_L measurements, 20 ±10 N.
Properties of core sets under power conditions
B (mT) at
CORE LOSS (W) at
GRADE
3C90
3C94
3C95
3C96
3F35
3F3
3F4
H = 250 A/m;f =
25 kHz;
T = 100 °C
≥330
≥330
≥330
≥330
≥300
≥315
≥300
f = 25 kHz;
B^ˆ = 200 mT;
T = 100 °C
≤ 0.16
−
−
−
−
−
−
f = 100 kHz;
B^{ˆ = 100 mT;}
T = 100 °C
≤ 0.17
≤ 0.13
−
≤ 0.1
−
≤ 0.17
−
f = 100 kHz;
B^{ˆ = 200 mT;}
T = 25 °C
−
−
≤ 0.86
−
−
−
−
f = 100 kHz;
B^{ˆ = 200 mT;}
T = 100 °C
−
≤ 0.8
≤ 0.82
≤ 0.6
−
−
−
Properties of core sets under power conditions (continued)
B (mT) at
CORE LOSS (W) at
GRADE
3C90
3C94
3C95
3C96
3F35
3F3
3F4
3F45
H = 250 A/m;
f = 25 kHz;
T = 100 °C
≥330
≥330
≥330
≥330
≥300
≥315
≥300
≥300
f = 500 kHz;
B^ˆ = 50 mT;
T = 100 °C
−
−
−
≤ 0.5
≤ 0.2
−
−
−
f = 500 kHz;
B^ˆ = 100 mT;
T = 100 °C
−
−
−
−
≤ 1.5
−
−
−
f = 1 MHz;
B^{ˆ = 30 mT;}
T = 100 °C
−
−
−
−
−
−
≤ 0.43
≤ 0.34
f = 1 MHz;
B^{ˆ = 50 mT;}
T = 100 °C
−
−
−
−
−
−
−
≤ 1.25
f = 400 kHz;
B^{ˆ = 50 mT;}
T = 100 °C
−
−
−
≤ 0.26
≤ 0.13
≤ 0.28
−
f = 3 MHz;
B^{ˆ = 10 mT;}
T = 100 °C
−
−
−
−
−
−
≤ 0.7
≤ 0.55
2008 Sep 01
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