Ferrites and accessories E 19/8/5 Core Series/Type: B66379 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 19/8/5 Core B66379 Size based on US lam. size E cores US designation E 187 E cores with high permeability for common-mode chokes and broadband applications Delivery mode: single units Magnetic characteristics (per set) 1 l/A = 1.76 mm l = 39.6 mm e 2 A = 22.5 mm e 2 A = 22.1 mm min 3 V = 891 mm e Approx. weight 4.4 g/set Ungapped Material A value P Ordering code L e V nH W/set N30 1700 +30/20% 2380 B66379G0000X130 T46 5800 30% 8120 B66379F0000X146 N27 1050 +30/20% 1470 < 0.18 (200 mT, 25 kHz, 100 C) B66379G0000X127 N87 1150 +30/20% 1610 < 0.50 (200 mT, 100 kHz, 100 C) B66379G0000X187 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 46.4 0.697 63.3 0.847 57.9 0.865 N87 46.4 0.697 64.1 0.796 56.1 0.873 Validity range: K1, K2: 0.10 mm < s < 2.00 mm K3, K4: 40 nH < A < 350 nH L Please read Cautions and warnings and 2 06/13 Important notes at the end of this document.