B66358

www.DataSheet4U.com ETD 29/16/10 Core ETD 29/16/10 through ETD 59/31/22 I In accordance with IEC 61185 I For SMPS transformers with optimum B66358 weight/performance ratio at small volume I ETD cores are supplied as single units Magnetic characteristics (per set) Σl/A le Ae A min Ve 16 _ 0,4 10,7+0,6 = 0,93 mm–1 = 70,4 mm = 76 mm2 = 71 mm2 = 5 350 mm3 9,8 _ 0,6 9,8 _ 0,6 22+1,4 30,6 _ 1,6 FEK0044-8 Approx. weight 28 g/set Ungapped Material N27 N87 N97 1) AL value nH µe A L1min P V nH W/set Ordering code 2000 + 30/– 20 % 1470 1700 2200 + 30/– 20 % 1610 1700 2250 + 30/– 20 % 1670 1700 < 1,04 B66358-G-X127 (200 mT, 25 kHz, 100 °C) < 2,80 B66358-G-X187 (200 mT, 100 kHz, 100 °C) < 2,40 B66358-G-X197 (200 mT, 100 kHz, 100 °C) Gapped Material g mm N27, N87 0,10 ± 0,02 0,20 ± 0,02 0,50 ± 0,05 1,00 ± 0,05 A L value approx. nH 621 383 201 124 µe Ordering code ** = 27 (N27) ** = 87 (N87) B66358-G100-X1** B66358-G200-X1** B66358-G500-X1** B66358-G1000-X1** 457 281 148 91 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 477 08/01 g ETD 29/16/10 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: 124 124 K2 (25 °C) – 0,7 – 0,7 Calculation of saturation current K3 (25 °C) 195 192 K4 (25 °C) – 0,847 – 0,796 K3 (100 °C) K4 (100 °C) 181 176 – 0,865...