Ferrites and accessories E 13/7/4 (EF 12.6) Core and accessories Series/Type: B66305, B66202, B66306, B66414 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 13/7/4 (EF 12.6) Core B66305 To IEC 61246 For miniature transformers Available with SMD coil former E cores with high permeability for common-mode chokes and broadband applications Delivery mode: single units Magnetic characteristics (per set) 1 l/A = 2.39 mm l = 29.6 mm e 2 A = 12.4 mm e 2 A = 12.2 mm min 3 V = 367 mm e Approx. weight 2 g/set Ungapped Material A value P Ordering code L e V nH W/set N30 1000 +30/20% 1900 B66305G0000X130 T46 3600 30% 6839 B66305F0000X146 N27 800 +30/20% 1510 < 0.40 (200 mT, 100 kHz, 100 C) B66305G0000X127 N87 850 +30/20% 1620 < 0.20 (200 mT, 100 kHz, 100 C) B66305G0000X187 Gapped Material g A value approx. Ordering code L e mm nH N27 0.040.01 250 454 B66305G0040X127 The A value in the table applies to a core set comprising one ungapped core (dimension g = 0) and L one gapped core (dimension g > 0). 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 28.4 0.676 36.5 0.847 33.2 0.865 N87 28.4 0.676 37.5 0.796 32.1 0.873 Validity range: K1, K2: 0.03 mm < s < 1.00 mm K3, K4: 30 nH < A < 260 nH L Please read Cautions and warnings and 2 06/13 Important notes at the end of this document.