Ferrites and accessories ETD 59/31/22 Core and accessories Series/Type: B66397, B66398 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.ETD 59/31/22 Core B66397 To IEC 61185 For SMPS transformers with optimum weight/performance ratio at small volume Delivery mode: single units Magnetic characteristics (per set) 1 l/A = 0.38 mm l = 139 mm e 2 A = 368 mm e 2 A = 368 mm min 3 V = 51200 mm e Approx. weight 260 g/set Ungapped Material A value B * P Ordering code L e S V nH mT W/set N27 5000 +30/20% 1500 320 < 9.62 (200 mT, 25 kHz, 100 C) B66397G0000X127 N87 5300 +30/20% 1590 320 < 5.20 (100 mT, 100 kHz, 100 C) B66397G0000X187 N97 5500 +30/20% 1660 320 < 4.50 (100 mT, 100 kHz, 100 C) B66397G0000X197 * H = 250 A/m f = 10 kHz T = 100 C Gapped Material g A value Ordering code L e approx. ** = 27 (N27) mm nH ** = 87 (N87) N27, 0.200.02 1588 476 B66397G0200X1** N87 1.000.05 508 152 B66397G1000X1** 1.500.05 381 114 B66397G1500X1** 2.00 0.05 311 93 B66397G2000X1** 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). Please read Cautions and warnings and 2 06/13 Important notes at the end of this document.