E 42/21/20
Core
I
In accordance with IEC 61246
I
E cores are supplied as single units
B66329
Magnetic characteristics
(per set)
危
l/A
l
e
A
e
A
min
V
e
= 0,41 mm
鈥?
= 97 mm
= 234 mm
2
= 229 mm
2
= 22 700 mm
3
Approx. weight
116 g/set
Ungapped
Mate-
A
L
value
nH
rial
N27
N87
碌
e
A
L1min
P
V
nH
W/set
Ordering code
4750 + 30/鈥?20 % 1560 3800
5200 + 30/鈥?20 % 1690 3800
< 4,40 (200 mT, 25 kHz, 100 擄C) B66329-G-X127
< 12,00 (200 mT, 100 kHz, 100 擄C) B66329-G-X187
Gapped
Mate-
g
rial
mm
N27
0,25
鹵
0,02
0,50
鹵
0,05
1,00
鹵
0,05
1,50
鹵
0,05
A
L
value approx.
nH
1029
603
354
259
碌
e
338
198
116
85
Ordering code
B66329-G250-X127
B66329-G500-X127
B66329-G1000-X127
B66329-G1500-X127
The
A
L
value in the table applies to a core set comprising one ungapped core (dimension
g
= 0) and
one gapped core (dimension
g
> 0).
Calculation factors
(for formulas, see
鈥淓 cores: general information鈥?
page 382)
Material
Relationship between
air gap 鈥?/div>
A
L
value
K1
(25 擄C)
N27
N87
Validity range:
354
354
K2
(25 擄C)
鈥?0,770
鈥?0,770
Calculation of saturation current
K3
(25 擄C)
574
555
K4
(25 擄C)
鈥?0,847
鈥?0,796
K3
(100 擄C)
K4
(100 擄C)
534
521
鈥?0,865
鈥?0,873
K1, K2:
0,10 mm <
s
< 3,00 mm
K3, K4:
160 nH <
A
L
< 1500 nH
427
08/01
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