B66315 Datasheet, PDF (1/2 Pages) EPCOS – E 25,4/10/7 Core

E 25,4/10/7
Core
B66315
I Size based on US lam. size E cores
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)
Σl/A = 1,27 mm^–1
l_e = 49,2 mm
A_e = 38,8 mm²
A_min = 38,4 mm²
V_e = 1 910 mm³
Approx. weight 9,6 g/set
Ungapped
Material
N30
N27
N87
T42
A_L value
nH
µ_e A_L1min P_V
nH W/set
Ordering code
2700 + 30/– 20 % 2720
B66315-G-X130
1500 + 30/– 20 % 1510 1240 < 0,36
B66315-G-X127
(200 mT, 25 kHz, 100 °C)
1670 + 30/– 20 % 1690 1240 < 1,00
B66315-G-X187
(200 mT, 100 kHz, 100 °C)
8500 ± 30 %
8570
B66315-F-X142
Gapped
Material
N27
g
mm
0,50 ± 0,05
A_L value approx. µ_e
nH
122
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 “E cores: general information”, page 382)
Material
N27
N87
Relationship between
air gap – A_L value
K1 (25 °C) K2 (25 °C)
75
– 0,707
75
– 0,707
Calculation of saturation current
K3 (25 °C)
106
106
K4 (25 °C)
– 0,847
– 0,796
K3 (100 °C) K4 (100 °C)
97
– 0,865
94
– 0,873
Validity range:
K1, K2: 0,10 mm < s < 2,00 mm
K3, K4: 50 nH < A_L < 500 nH
415 08/01