B66315G0000X130

EPCOS AG 2017. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS’ prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Ferrites and accessories
E 25.4/10/7
Core
Series/Type: B66315
Date: May 2017
2 5/17
Please read Cautions and warnings and
Important notes at the end of this document.
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)
Σl/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 mm
3
Approx. weight 9.6 g/set
Ungapped
Gapped (A
L
values/air gaps examples)
The A
L
value in the table applies to a core set comprising one ungapped core (dimension g = 0 mm)
and one gapped core (dimension g > 0 mm).
Other A
L
values/air gaps and materials available on request ─ see Processing remarks on page 4.
Material A
L
value
nH
μ
e
P
V
W/set
Ordering code
N30 2700 +30/–20% 2720 B66315G0000X130
T38 3750 +30/–20% 3790 B66315G0000X138
T46 8500 ±30% 8570 B66315F0000X146
N27 1500 +30/–20% 1510 < 0.36 (200 mT, 25 kHz, 100 °C) B66315G0000X127
N87 1670 +30/–20% 1690 < 1.00 (200 mT, 100 kHz, 100 °C) B66315G0000X187
Material g
mm
A
L
value
approx.
nH
μ
e
Ordering code
N27 0.50 ±0.05 122 123 B66315G0500X127
B66315Core
E 25.4/10/7
3 5/17
Please read Cautions and warnings and
Important notes at the end of this document.
Calculation factors (for formulas, see “E cores: general information”)
Validity range: K1, K2: 0.10 mm < s < 2.00 mm
K3, K4: 50 nH < A
L
< 500 nH
Material Relationship between
air gap – A
L
value
Calculation of saturation current
K1 (25 °C) K2 (25 °C) K3 (25 °C) K4 (25 °C) K3 (100 °C) K4 (100 °C)
N27 75 0.707 106 0.847 97 0.865
N87 75 0.707 106 0.796 94 0.873
B66315Core
E 25.4/10/7

B66315G0000X130

Mfr. #:
Manufacturer:
EPCOS / TDK
Description:
Ferrite Cores & Accessories E25.4/10/7 N30OL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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