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

E 25.4/10/7
Core
B66315
■ Size based on US lam. size E cores 
US designation E2425
■ E cores with high permeability for common-mode
chokes and broadband applications
■ Delivery mode: single units
Magnetic characteristics (per set)
l/A = 1.27 mm^–1
l_e = 49.2 mm
A_e = 38.8 mm^2
A_min = 38.4 mm^2
V_e = 1910 mm³
Approx. weight 9.6 g/set
Ungapped
Material
N30
T46
N27
N87
A_L value
nH
2700 +30/–20%
8500 30%
1500 +30/–20%
1670 +30/–20%
_e
2720
8570
1510
1690
P_V
W/set
Ordering code
B66315G0000X130
B66315F0000X146
< 0.36 (200 mT, 25 kHz, 100 °C) B66315G0000X127
< 1.00 (200 mT, 100 kHz, 100 °C) B66315G0000X187
Gapped
Material g

mm
A_L value
_e
approx.
nH
N27
0.500.05
122
123
Ordering code
B66315G0500X127
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” )
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
Please read Cautions and warnings and
Important notes at the end of this document.
2 06/13