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
0.454
35500
127
280
270
鈮?0
UNIT
mm
鈭?
mm
3
mm
mm
2
mm
2
g
54.5 1.3
41.2 1.1
18.9 0.4
18.9
0.4
MGC274
ETD54
handbook, halfpage
20.2
0.4
27.6
0.2
Dimensions in mm.
Fig.1 ETD54 core half.
Core halves
Clamping force 50
鹵20
N. Gapped cores are available on request.
GRADE
3C30
3C85
3C90
3F3
A
L
(nH)
4100
鹵25%
5000
鹵25%
5000
鹵25%
4600
鹵25%
碌
e
鈮?580
鈮?950
鈮?950
鈮?800
AIR GAP
(碌m)
鈮?
鈮?
鈮?
鈮?
TYPE NUMBER
ETD54-3C30
ETD54-3C85
ETD54-3C90
ETD54-3F3
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
= 200 mT;
B
T = 100
擄C
鈮?.0
鈮?.0
鈮?.0
鈭?/div>
CORE LOSS (W) at
f = 100 kHz;
藛
B = 100 mT;
T = 100
擄C
鈮?.8
鈮?.2
鈮?.8
鈮?.5
f = 400 kHz;
藛
B = 50 mT;
T = 100
擄C
鈭?/div>
鈭?/div>
鈭?/div>
鈮?.5
3C30
3C85
3C90
3F3
1997 Nov 21
372
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