E 55/28/25
Core
I
E cores are supplied as single units
B66344
Magnetic characteristics
(per set)
危
l/A
l
e
A
e
A
min
V
e
= 0,3 mm
鈥?
= 124 mm
= 420 mm
2
= 420 mm
2
= 52 100 mm
3
Approx. weight
256 g
Ungapped
Mate-
A
L
value
nH
rial
N27
N87
碌
e
A
L1min
P
V
nH
W/set
< 9,50
(200 mT, 25 kHz, 100 擄C)
< 4,80
(100 mT, 100 kHz, 100 擄C)
Ordering code
B66344-G-X127
B66344-G-X187
6800 + 30/鈥?20 % 1600 5340
7300 + 30/鈥?20 % 1740 5250
Gapped
Mate-
g
rial
mm
N27
2,50
鹵
0,05
A
L
value approx.
nH
295
碌
e
70
Ordering code
B66344-G2500-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:
596
596
K2
(25 擄C)
鈥?0,769
鈥?0,769
Calculation of saturation current
K3
(25 擄C)
992
950
K4
(25 擄C)
鈥?0,847
鈥?0,796
K3
(100 擄C)
K4
(100 擄C)
927
905
鈥?0,865
鈥?0,873
K1, K2:
0,15 mm <
s
< 3,50 mm
K3, K4:
220 nH <
A
L
< 2130 nH
431
08/01
1
2
