E 25/13/7 (EF 25) Core B66317 ● In accordance with IEC 61246 ● E cores are supplied as single units Magnetic characteristics (per set) Σl/A le Ae Amin Ve = 1,1 mm–1 = 57,5 mm = 52,5 mm2 = 51,5 mm2 = 3 020 mm3 Approx. weight 16 g/set Ungapped µe Material AL value AL1min PV N30 N27 nH nH 2900 + 30/– 20 % 2530 1750 + 30/– 20 % 1520 1440 N67 1800 + 30/– 20 % 1570 1440 Ordering code W/set B66317-G-X130 0,59 B66317-G-X127 (200 mT, 25 kHz, 100 ˚C) 2,00 B66317-G-X167 (200 mT, 100 kHz, 100 ˚C) Gapped Material N27, N67 g mm 0,10 ± 0,02 0,16 ± 0,02 0,25 ± 0,02 0,50 ± 0,05 1,00 ± 0,05 µe AL value approx. nH 489 347 250 151 91 Ordering code ** = 27 (N27) = 67 (N67) B66317-G100-X1** B66317-G160-X1** B66317-G250-X1** B66317-G500-X1** B66317-G1000-X1** 425 302 218 131 79 The AL value in the table applies to a core set comprising one ungapped core (dimension g = 0) and one gapped core (dimension g > 0). Calculation factors (see page 423 for formulas) Material N27 N67 Validity range: 450 Relationship between air gap – AL value K1 (25 ˚C) K2 (25 ˚C) 90 – 0,731 90 – 0,731 Calculation of saturation current K3 (25 ˚C) 139 135 K4 (25 ˚C) – 0,847 – 0,820 K3 (100 ˚C) K4 (100 ˚C) 129 – 0,865 129 – 0,881 K1, K2: 0,10 mm < s < 2,00 mm K3, K4: 60 nH < AL < 570 nH Siemens Matsushita Components E 25/13/7 (EF 25) Accessories B66208 Coil former (magnetic axis horizontal or vertical) Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085: F max. operating temperature 155 ˚C), color code black Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 ˚C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 ˚C, 3,5 s Winding: see page 159 Squared pins Material: Stainless spring steel (0,25 mm) Coil former Ordering code Figure Sections AN mm2 lN mm AR value µΩ Pins 1 1 61 50 28 10 B66208-A1110-T1 2 1 61 50 28 10 B66208-J1110-T1 Yoke (ordering code per piece, 2 are required) B66208-A2010 Figure 1, horizontal version 27,5 _ 0,3 7,7+0,2 2,2±0,1 3,5 _ 0,5 0,7±0,1 9,4 _ 0,25 17 _ 0,3 0,7±0,1 17,8 max. 17,3 _ 0,25 7,7+0,2 0,7 9,4 _ 0,25 ø1,6+0,1 28 _ 0,35 5 5,08 10 4 x 5,08 = 20,32 6. 1 Hole arrangement View in mounting direction 20,32 FEK0352-I Siemens Matsushita Components 451 E 25/13/7 (EF 25) Accessories B66208 Figure 2, vertical version 27,5 _ 0,3 17 3,6 _ 0,6 2,2 _ 0,15 26 max. 9,6 _ 0,2 17,3 _ 0,3 9,6 _ 0,2 0,85±0,1 0,85±0,1 17,3 _ 0,3 0,7 ø 1,6+0,1 5,08 5 7,7+0,2 10 6. 1 4 x 5,08 = 20,32 7,7+0,2 Hole arrangement View in mounting direction 12,7 FEK0323-5 Yoke 452 Siemens Matsushita Components E 25/13/7 (EF 25) Accessories B66208 Coil former for SMPS transformers with line isolation Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085: F max. operating temperature 155 ˚C), color code black Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 ˚C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 ˚C, 3,5 s Winding: see page 159 Squared pins Yoke Material: Nickel silver (0,3 mm) with ground terminal Coil former Sections Ordering code AN lN AR value mm2 mm µΩ 1 56 52 32 Yoke (ordering code per piece, 2 piece required) Pins 9 Coil former Yoke 17,3 _ 0,2 17,3 _ 0,2 10 _ 0,15 10 _ 0,15 7,7+0,1 3,5 _ 0,2 15,6 _ 0,4 17,1_ 0,25 7,7+0,1 25,7 _ 0,2 B66208-J1009-T1 B66208-A2003 12,7±0,1 20,32 2,25 _ 0,2 26 _ 0,2 14,4 18,9 _ 0,4 ø1+0,1 2,54 6 1,25 9 5 1 Ground Erdungspunkte Siemens Matsushita Components Hole arrangement View in mounting direction FEK0353-R 453