Ferrites and accessories E 30/15/7 Core and accessories Series/Type: B66319, B66232 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 30/15/7 Core B66319 Delivery mode: single units Magnetic characteristics (per set) 1 l/A = 1.12 mm l = 67 mm e 2 A = 60 mm e 2 A = 49 mm min 3 V = 4000 mm e Approx. weight 22 g/set Ungapped Material A value P Ordering code L e V nH W/set N30 3100 +30/20% 2760 B66319G0000X130 N27 1700 +30/20% 1510 < 0.81 (200 mT, 25 kHz, 100 C) B66319G0000X127 N87 1900 +30/20% 1690 < 2.20 (200 mT, 100 kHz, 100 C) B66319G0000X187 Gapped Material g A value Ordering code L e approx. ** = 27 (N27) mm nH ** = 87 (N87) N27, 0.100.02 460 410 B66319G0100X1** N87 0.180.02 300 265 B66319G0180X1** 0.340.02 195 175 B66319G0340X1** 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 90 0.708 156 0.847 144 0.865 N87 90 0.708 154 0.796 140 0.873 Validity range: K1, K2: 0.10 mm < s < 2.00 mm K3, K4: 560 nH < A < 60 nH L Please read Cautions and warnings and 2 06/13 Important notes at the end of this document.