EC 70/35/16
Core
I
In accordance with IEC 60647
I
Compact E core with large winding window
I
Round center leg particularly suitable
B66343
for use of thick winding wires
I
EC cores are supplied as single units
Magnetic characteristics
(per set)
危
l/A
l
e
A
e
A
min
V
e
= 0,52 mm
鈥?
= 144 mm
= 279 mm
2
= 211 mm
2
= 40 200 mm
3
Approx. weight
252 g/set
Ungapped
Material
N27
A
L
value
nH
碌
e
A
L1min
P
V
nH
W/set
Ordering code
3900 + 30/鈥?20 % 1600 3050
< 4,80
B66343-G-X127
(200 mT, 25 kHz, 100 擄C)
Gapped
Material
N27
g
mm
0,50
鹵
0,05
1,00
鹵
0,05
A
L
value approx.
nH
529
320
碌
e
217
131
Ordering code
B66343-G500-X127
B66343-G1000-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 -
A
L
value
K1
(25 擄C)
N27
Validity range:
320
K2
(25 擄C)
鈥?0,725
Calculation of saturation current
K3
(25 擄C)
644
K4
(25 擄C)
鈥?0,847
K3
(100 擄C)
K4
(100 擄C)
603
鈥?0,865
K1, K2:
0,10 mm <
s
< 3,50 mm
K3, K4:
120 nH <
A
L
< 1200 nH
503
08/01
1
2
