E 25,4/10/7
Core
I
Size based on US lam. size E cores
B66315
US designation E2425
I
E cores with high permeability for common-mode
chokes and broadband applications
I
E cores are supplied as single units
Magnetic characteristics
(per set)
危
l/A
l
e
A
e
A
min
V
e
= 1,27 mm
鈥?
= 49,2 mm
= 38,8 mm
2
= 38,4 mm
2
= 1 910 mm
3
Approx. weight
9,6 g/set
Ungapped
Material
N30
N27
N87
T42
Gapped
Material
N27
g
mm
0,50
鹵
0,05
A
L
value approx.
nH
122
A
L
value
nH
碌
e
A
L1min
P
V
nH
W/set
Ordering code
B66315-G-X130
2700 + 30/鈥?20 % 2720
1500 + 30/鈥?20 % 1510 1240
1670 + 30/鈥?20 % 1690 1240
8500
鹵
30 %
8570
< 0,36
B66315-G-X127
(200 mT, 25 kHz, 100 擄C)
< 1,00
B66315-G-X187
(200 mT, 100 kHz, 100 擄C)
B66315-F-X142
碌
e
123
Ordering code
B66315-G500-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:
75
75
K2
(25 擄C)
鈥?0,707
鈥?0,707
Calculation of saturation current
K3
(25 擄C)
106
106
K4
(25 擄C)
鈥?0,847
鈥?0,796
K3
(100 擄C)
K4
(100 擄C)
97
94
鈥?0,865
鈥?0,873
K1, K2:
0,10 mm <
s
< 2,00 mm
K3, K4:
50 nH <
A
L
< 500 nH
415
08/01
1
2
