Ferrites and accessories E 30/15/7 Core and accessories Series/Type: B66319, B66232 Date: June 2013 Data SheetData Sheet EPCOS AG 2013. Reproduction, publication and dissemination of this data sheet and the information contained therein without EPCOS prior express consent is prohibited.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.