B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL B1.1 FERROCART | FE 896 A material with high thermal and temporal stability, for high AC amplitudes or high premagnetization. For use in power applications (e.g. loading coils, noise suppression) SYMBOL VALUE UNIT µi 140 ± 15% 1 tanδ / µi 1200 10 µa 270 1 CONDITIONS Initial permeability µi as a function of frequency f 160 25°C ; ≤ 10 kHz ≤ 0,25 mT -6 140 25°C ; 0,16 MHz ≤ 0,25 mT 120 1 kHz 100 500 mT 2000 A/m 1 µΔ 80 µi 25°C ; 10 kHz 90 60 25°C ; 10 kHz 45 40 5000 A/m aF < 10 Tmax 200 -6 10 /K 20 25°C - 70°C ≤ 10 kHz; ≤ 0,25 mT 0 10 °C Incremental permeability µΔ as a function of premagnetization H 100 f / kHz 1000 Amplitude permeability µa as a function of induction Bs 300 160 250 140 120 200 150 80 µa µΔ 100 60 100 40 50 20 f = 1 kHz ΔB = 2 mT 0 0 100 1000 H_ / A/m 10 10000 Magnetization curves 100 Bs / mT 1000 Amplitude permeability µa as a function of magnetic field strength Hs 2000 300 1800 1600 250 1400 200 B / mT 1200 1000 µa 150 800 100 600 400 50 200 0 -5000 f = 1 kHz 0 5000 10000 15000 H / A/m 20000 25000 0 100 30000 183 1000 Hs / A/m 10000 B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL Unipolar losses (20% ripple) Unipolar losses (30% ripple) 1000 1000 100 kHz 75 kHz 50 kHz 75 kHz Pv / mW/cm³ Pv / mW/cm³ 100 kHz 50 kHz 100 25 kHz 10 1000 2000 3000 H_ / A/m 4000 10 1000 5000 Spezific power loss Pv as a function of frequency f and induction Bs kH z 10 0 kH z 1000 kH z 40 10 Pv / mW/cm³ 10000 100 10 10 100 Bs / mT 25 kHz 100 1000 184 2000 3000 H_ / A/m 4000 5000