Ferrites and accessories E 47/20/16 Core Series/Type: B66383 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. E 47/20/16 Core B66383 Size based on US lam. size E cores US designation E 625 Delivery mode: single units Magnetic characteristics (per set) 1 l/A= 0.38 mm l = 89 mm e 2 A = 233 mm e 2 A = 226 mm min 3 V = 20700 mm e Approx. weight 106 g/set Ungapped Mate- A value B * P Ordering code L e S V rial nH mT W/set N27 5100 +30/20% 1550 320 < 3.95 (200 mT, 25 kHz, 100 C) B66383G0000X127 N87 5600 +30/20% 1690 320 < 11.10 (200 mT, 100 kHz, 100 C) B66383G0000X187 * H = 250 A/m f = 10 kHz T = 100 C Other A values/air gaps and materials available on request see Processing remarks on page 3. L 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 364 0.773 579 0.847 538 0.865 N87 364 0.773 562 0.796 524 0.873 Validity range: K1, K2: 0.10 mm < s < 3.00 mm K3, K4: 170 nH < A < 1640 nH L Please read Cautions and warnings and 2 5/17 Important notes at the end of this document.