Ferrites and accessories
E 56/24/19
Core
Series/Type: B66385
Date: June 2013
Data SheetData Sheet
EPCOS AG 2015. 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. E 56/24/19
Core B66385
Size based on US lam. size E cores
US designation E 75
Delivery mode: single units
Magnetic characteristics (per set)
1
l/A = 0.31 mm
l = 107 mm
e
2
A = 340 mm
e
2
A = 327 mm
min
3
V = 36400 mm
e
Approx. weight 184 g/set
Ungapped
Mate- A value B * P Ordering code
L e S V
rial nH mT W/set
N27 6300 +30/20% 1570 320 < 6.8 (200 mT, 25 kHz, 100 C) B66385G0000X127
N87 6900 +30/20% 1730 320 < 3.2 (100 mT, 100 kHz, 100 C) B66385G0000X187
* H = 250 A/m; f = 10 kHz; T = 100 C
Calculation factors (for formulas, see E cores: general information )
Material Relationship between Calculation of saturation current
air gap A value
L
K1 (25 C) K2 (25 C) K3 (25 C) K4 (25 C) K3 (100 C) K4 (100 C)
N27 500 0.784 821 0.847 765 0.865
Validity range: K1, K2: 0.10 mm < s < 3.00 mm
K3, K4: 200 nH < A < 2000 nH
L
Please read Cautions and warnings and
2 06/13
Important notes at the end of this document.