Ferrites and accessories E 42/21/15 Core Series/Type: B66325 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 42/21/15 Core B66325 To IEC 61246 Delivery mode: single units Magnetic characteristics (per set) 1 l/A = 0.54 mm l = 97 mm e 2 A = 178 mm e 2 A = 175 mm min 3 V = 17300 mm e Approx. weight 88 g/set Ungapped Material A value P Ordering code L e V nH W/set N27 3500 +30/20% 1510 < 3.30 (200 mT, 25 kHz, 100 C) B66325G0000X127 N87 3950 +30/20% 1690 < 9.00 (200 mT, 100 kHz, 100 C) B66325G0000X187 N95 5100 +30/20% 2292 < 9.60 (200 mT, 100 kHz, 25 C) B66325G0000X195 < 8.70 (200 mT, 100 kHz, 100 C) N30 7500 +30/20% 3252 B66325G0000X130 N97 4100 +30/20% 1778 < 9.00 (200 mT, 100 kHz, 100 C) B66325G0000X197 Gapped Material g A value approx. Ordering code L e mm nH N27 0.100.02 1497 647 B66325G0100X127 0.250.02 759 328 B66325G0250X127 0.500.05 454 196 B66325G0500X127 0.640.05 378 164 B66325G0640X127 1.000.05 272 118 B66325G1000X127 1.500.05 201 87 B66325G1500X127 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 272 0.741 436 0.847 406 0.865 N87 272 0.741 423 0.796 396 0.873 Validity range: K1, K2: 0.10 mm < s < 2.50 mm K3, K4: 1210 nH < A < 130 nH L Please read Cautions and warnings and 2 06/13 Important notes at the end of this document.