ER48 Datasheet, PDF (2/3 Pages) Ferroxcube International Holding B.V. – ER cores

Ferroxcube
ER cores
ER48/18/18
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
0.377 mm^−1
20300 mm³
87.0 mm
231
mm²
221
mm²
≈ 51 g
Core halves
Clamping force for A_L measurements, 50 ± 20 N.
GRADE
A_L
(nH)
µ_e
3C90
3C94
180 ± 5%
265 ± 5%
309 ± 5%
370 ± 5%
465 ± 5%
6400 ± 25%
6400 ± 25%
≈ 54
≈ 77
≈ 93
≈ 111
≈ 140
≈ 1920
≈ 1920
Properties of core sets under power conditions
B (mT) at
GRADE
3C90
3C94
H = 250 A/m;
f = 25 kHz;
T = 100 °C
≥330
≥330
f = 25 kHz;
B^ˆ = 200 mT;
T = 100 °C
≤ 2.4
−
11.45
± 0.25
18
± 0.2
48 1
36.8 ± 0.8
17.6
± 0.4
17.6
± 0.4
R0.8 ± 0.5 (4×)
MFP067
Dimensions in mm.
Fig.1 ER48/18/18 core half.
TOTAL AIR GAP
(µm)
≈ 2500
≈ 1500
≈ 1250
≈ 1000
≈ 750
≈0
≈0
TYPE NUMBER
ER48/18/18-3C90-E180
ER48/18/18-3C90-E265
ER48/18/18-3C90-E309
ER48/18/18-3C90-E370
ER48/18/18-3C90-E465
ER48/18/18-3C90
ER48/18/18-3C94
CORE LOSS (W) at
f = 100 kHz;
B^ˆ = 100 mT;
T = 100 °C
≤ 2.5
≤ 2.1
f = 100 kHz;
B^ˆ = 200 mT;
T = 100 °C
−
≤ 12
2008 Sep 01
794