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.