Philips Components
Product speci鏗乧ation
ETD cores and accessories
CORE SETS
Effective core parameters
SYMBOL
危(I/A)
V
e
I
e
A
e
A
min
m
PARAMETER
core factor (C1)
effective volume
effective length
effective area
minimum area
mass of core half
VALUE
0.534
24000
114
211
209
鈮?2
UNIT
mm
鈭?
mm
3
mm
mm
2
mm
2
g
0
16.7 0.6
MGC270
ETD49
handbook, halfpage
17.7 0.8
0
24.7
0.2
0
49.8 2.2
36.1 1.8
0
0
16.7 0.6
Dimensions in mm.
Fig.1 ETD49 core half.
Core halves
Clamping force 50
鹵20
N. Gapped cores are available on request.
GRADE
3C30
3C85
3C90
3F3
A
L
(nH)
3400
鹵25%
4200
鹵25%
4200
鹵25%
3900
鹵25%
碌
e
鈮?550
鈮?950
鈮?950
鈮?800
AIR GAP
(碌m)
鈮?
鈮?
鈮?
鈮?
TYPE NUMBER
ETD49-3C30
ETD49-3C85
ETD49-3C90
ETD49-3F3
Properties of core sets under power conditions
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
擄C
鈮?60
鈮?20
鈮?30
鈮?20
f = 25 kHz;
藛
B = 200 mT;
T = 100
擄C
鈮?.7
鈮?.4
鈮?.7
鈭?/div>
CORE LOSS (W) at
f = 100 kHz;
藛
B = 100 mT;
T = 100
擄C
鈮?.1
鈮?.0
鈮?.1
鈮?.0
f = 400 kHz;
藛
B = 50 mT;
T = 100
擄C
鈭?/div>
鈭?/div>
鈭?/div>
鈮?.4
3C30
3C85
3C90
3F3
1997 Nov 21
369
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