ER51 Datasheet, PDF (2/4 Pages) Ferroxcube International Holding B.V. – Planar ER cores and accessories

Ferroxcube
Planar ER cores and accessories
ER51/10/38
CORE SETS
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
0.209 mm^−1
25800 mm³
73.5 mm
351
mm²
314
mm²
≈ 74.7 g
R0.25 max (4x)
4.95
± 0.15
10.16
± 0.15
A
20
± 0.4
R2.0 (8x)
3
+ 0.3
−0
5˚
38.1
± 0.7
R1.0
(2x)
A
41.8 ± 0.8
51 ± 1.0
Section A-A
4.4 min (2x)
MFP219
Dimensions in mm.
Fig.1 ER51/10/38 core half.
Core halves for general purpose transformers and power applications
Clamping force for A_L measurements, 150 ± 25 N.
GRADE
A_L
(nH)
µ_e
AIR GAP
(µm)
3C92
8100 ± 25 %
≈ 1350
≈0
3C93
9400 ± 25 %
≈ 1570
≈0
3C95
14230 ± 25 %
≈ 2370
≈0
3C96
10200 ± 25 %
≈ 1700
≈0
3F3
10200 ± 25 %
≈ 1700
≈0
TYPE NUMBER
ER51/10/38-3C92
ER51/10/38-3C93
ER51/10/38-3C95
ER51/10/38-3C96
ER51/10/38-3F3
Properties of core sets under power conditions
B (mT) at
GRADE
3C92
3C93
3C95
3C96
3F3
H = 250 A/m;
f = 25 kHz;
T = 100 °C
≥ 370
≥ 320
≥ 320
≥ 340
≥ 300
f = 100 kHz;
B^ˆ = 100 mT;
T = 100 °C
≤ 2.5
≤ 2.5 ⁽¹⁾
−
≤ 1.68
≤ 3.2
CORE LOSS (W) at
f = 100 kHz;
B^ˆ = 200 mT;
T = 25 °C
−
−
≤ 17.9
−
−
f = 100 kHz;
B^ˆ = 200 mT;
T = 100 °C
≤ 15.2
≤ 15.2 ⁽¹⁾
≤ 17
≤ 11.2
−
f = 400 kHz;
B^ˆ = 50 mT;
T = 100 °C
−
−
−
−
≤ 5.0
f = 500 kHz;
B^ˆ = 50 mT;
T = 100 °C
−
−
−
≤ 10.5
−
1. Measured at 140 °C.
2008 Sep 01
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