Ferrites and accessories E 42/21/20 Core and accessories Series/Type: B66329, B66243 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 42/21/20 Core B66329 To IEC 61246 Delivery mode: single units Magnetic characteristics (per set) 1 l/A = 0.41 mm l = 97 mm e 2 A = 234 mm e 2 A = 229 mm min 3 V = 22700 mm e Approx. weight 116 g/set Ungapped Mate- A value B * P Ordering code L e S V rial nH mT W/set N27 4750 +30/20% 1560 320 < 4.4 (200 mT, 25 kHz, 100 C) B66329G0000X127 N87 5200 +30/20% 1690 320 < 12.0 (200 mT, 100 kHz, 100 C) B66329G0000X187 N95 6700 +30/20% 2292 320 < 12.60 (200 mT, 100 kHz, 25 C) B66329G0000X195 < 11.50 (200 mT, 100 kHz, 100 C) N97 5400 +30/20% 1781 320 < 10.2 (200 mT, 100 kHz, 100 C) B66329G0000X197 * H = 250 A/m f = 10 kHz T = 100 C Gapped Material g A value Ordering code L e approx. mm nH N27 0.250.02 1029 338 B66329G0250X127 0.500.05 603 198 B66329G0500X127 1.000.05 354 116 B66329G1000X127 1.500.05 259 85 B66329G1500X127 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 354 0.770 574 0.847 534 0.865 N87 354 0.770 555 0.796 521 0.873 Validity range: K1, K2: 0.10 mm < s < 3.00 mm K3, K4: 160 nH < A < 1500 nH L Please read Cautions and warnings and 2 06/13 Important notes at the end of this document.