CLI-EFD25 Просмотр технического описания (PDF) - Philips Electronics
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CLI-EFD25 Datasheet PDF : 6 Pages
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Philips Components
EFD cores and accessories
Product specification
EFD25
CORES
Effective core parameters
SYMBOL
PARAMETER
Σ(I/A)
core factor (C1)
Ve
Ie
Ae
Amin
m
effective volume
effective length
effective area
minimum area
mass of core half
VALUE UNIT
1.00
3 300
mm−1
mm3
57.0
58.0
55
mm
mm2
mm2
≈8
g
handbook, halfpage
9.3
12.5 0.25
0.15
9.1 0.6
0.2
25 0.65
18.7 0.6
11.4
0.2
MGC342
5.2
0.15
Dimensions in mm.
Fig.1 EFD25 core half.
Core halves
Gapped cores are available on request. Clamping force 40 ±20 N.
GRADE
3C30
3C85
3C90
3F3
3F4
AL
(nH)
1800 ±25%
2200 ±25%
2200 ±25%
2000 ±25%
1000 ±25%
µe
≈1 450
≈1 780
≈1 780
≈1 600
≈800
AIR GAP
(µm)
≈0
≈0
≈0
≈0
≈0
TYPE NUMBER
EFD25-3C30
EFD25-3C85
EFD25-3C90
EFD25-3F3
EFD25-3F4
Properties of core sets under power conditions
B (mT) at
CORE LOSS (W) at
GRADE
3C30
3C85
3C90
3F3
3F4
H = 250 A/m;
f = 25 kHz;
T = 100 °C
≥360
≥320
≥330
≥315
≥300
f = 25 kHz;
Bˆ = 200 mT;
T = 100 °C
≤0.35
≤0.50
≤0.35
−
−
f = 100 kHz;
Bˆ = 100 mT;
T = 100 °C
≤0.38
≤0.60
≤0.38
≤0.38
−
f = 400 kHz;
Bˆ = 50 mT;
T = 100 °C
−
−
−
≤0.66
−
f = 1 MHz;
Bˆ = 30 mT;
T = 100 °C
−
−
−
−
≤0.70
f = 3 MHz;
Bˆ = 10 mT;
T = 100 °C
−
−
−
−
≤1.10
1997 Nov 21
2
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