OMEM S.p.A.

21 B(H) curves for nanocrystalline 73%Fe-15%Si-B-Cu not cut cores (0.02-0.03mm thickness) Dimensional tolerances for toroidal not cut cores FromΦ To Φ Inside diameter Outside diameter Tolerance on width strip 0 10 ±0,4 ±0,5 +0,3 10,1 25 ±0,5 ±0,75 +0,3 25,1 50 ±0,75 ±1 +0,3 50,1 80 ±1 ±1,25 +0,4 80,1 100 ±1,25 ±1,5 +0,5 100,1 160 ±1,5 ±2 +0,5 160,1 200 ±2 ±2,5 +1,5 200,1 320 ±2,5 ±3 +2 320,1 500 ±3,5 ±4 +2,5 500,1 800 ±5 ±5,5 +3,5 800,1 1000 ±6,5 ±7,5 +5 1000,1 1500 ±10 ±10 +7 (Outside diameter – Inside diameter)/2 = Build up | If Build up <= 5 -> tolerances +1| If 5 < Build up <= 10 -> tolerances +0,3 Magnetic guarantees for not cut cores Nano 0.02mm-0.03mm Guarantee Frequency [Hz] Effective magnetic field [As/cm] Min peak induction [T] TA39 50 0,0012 0,0055 0,02 0,062 0,054 0,33 TA40 50 0,0012 0,0055 0,02 0,01 0,1 0,7 TA41* 50 0,0012 0,0055 0,02 0,013 0,13 0,75 TA42* 50 0,0012 0,0055 0,02 0,016 0,17 0,85 * special guarantee - magnetic guarantees are strongly related to dimensions and finish requirements 0,001 0,01 0,1 1 10 0,0001 0,001 0,01 0,1 1 Bpeak [T] He . [As/cm] TA39 TA40 TA41 selected material TA42 selected material B(H) curves for nanocrystalline 73%Fe-15%Si-B-Cu not cut cores (0,02-0,03mm thickness)

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