Ferrites and accessories
ELP 43/10/28 with I 43/4/28
Cores (with and without clamp recess)
Series/Type: B66291G, B66291K, B66461G, B66461K
Date: May 2017
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. ELP 43/10/28
Core (with clamp recess) B66291
Core set EELP 43
ELP 43/10/28
Combination: ELP 43/10/28 with ELP 43/10/28
To IEC 62317-9
Delivery mode: single units
Magnetic characteristics (per set)
1
l/A = 0.274 mm
l = 61.6 mm
e
2
A = 225 mm
e
2
A = 217 mm
min
3
V = 13748 mm
e
Approx. weight 70 g/set
Ungapped
Material A value B * P Ordering code
L e S V
nH mT W/set (per piece)
N49 5000 25% 1070 250 < 3.5 ( 50 mT, 500 kHz, 100 C) B66291G0000X149
N92 5500 25% 1170 350 < 9.0 (200 mT, 100 kHz, 100 C) B66291G0000X192
N87 7300 25% 1560 300 < 8.0 (200 mT, 100 kHz, 100 C) B66291G0000X187
N97 7500 25% 1590 310 < 7.0 (200 mT, 100 kHz, 100 C) B66291G0000X197
N95 9000 25% 2012 310 < 8.25 (200 mT, 100 kHz, 25 C) B66291G0000X195
< 7.50 (200 mT, 100 kHz, 100 C)
* H = 250 A/m; f = 10 kHz; T = 100 C
Gapped (A values/air gaps examples)
L
Material g A value Ordering code
L e
approx.
mm nH
N87 0.1 0.02 2225 470 B66291G0100X187
1.0 0.05 355 75 B66291G1000X187
Other A values/air gaps and materials available on request see Processing remarks on page 6.
L
Calculation factors (for formulas, see E cores: general information)
EELP 43:
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)
N87 358 0.794 597 0.796 540 0.873
Validity range: K1, K2: 0.10 mm < s < 2.00 mm
K3, K4: 200 nH < A < 2200 nH
L
Please read Cautions and warnings and
2 5/17
Important notes at the end of this document.