B66397

www.DataSheet4U.com ETD 59/31/22 Core I In accordance with IEC 61185 I For SMPS transformers with optimum B66397 weight/performance ratio at small volume I ETD cores are supplied as single units Magnetic characteristics (per set) Approx. weight 260 g/set 22,1_ 0,9 Σl/A le Ae A min Ve = 0,38 mm–1 = 139 mm = 368 mm2 = 368 mm2 = 51 200 mm3 31,2 _ 0,4 22+0,9 22,1_ 0,9 43,6+2,2 59,8±1,4 FEK0066-5 Ungapped Material N27 N87 N97 1) AL value nH µe A L1min P V nH W/set Ordering code 5000 + 30/– 20 % 1500 4170 5300 + 30/– 20 % 1590 4170 5500 + 30/– 20 % 1660 4170 B66397-G-X127 < 9,62 (200 mT, 25 kHz, 100 °C) < 5,20 B66397-G-X187 (100 mT, 100 kHz, 100 °C) < 4,50 B66397-G-X197 (100 mT, 100 kHz, 100 °C) Gapped Material g mm N27, N87 0,20 ± 0,02 1,00 ± 0,05 1,50 ± 0,05 2,00 ± 0,05 A L value approx. nH 1588 508 381 311 µe Ordering code ** = 27 (N27) ** = 87 (N87) B66397-G200-X1** B66397-G1000-X1** B66397-G1500-X1** B66397-G2000-X1** 476 152 114 93 The A L value in the table applies to a core set comprising one ungapped core (dimension g = 0) and one gapped core (dimension g > 0). 1) Preliminary data 497 08/01 ETD 59/31/22 Core Calculation factors (for formulas, see “ E cores: general information”, page 382) Material Relationship between air gap – A L value K1 (25 °C) N27 N87 Validity range: 508 508 K2 (25 °C) – 0,708 – 0,708 Calculation of saturation current K3 (25 °C) 853 812 K4 (25 °C) – 0,847 – 0,796 K3 (100 °C) K4 (100 °C) 799 783 – 0,865 – 0,873 B66397 K1, K2 ...