B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL B1.3 FERROCARIT | FE 893 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 coils) SYMBOL VALUE UNIT µi 110 ± 15% 1 tanδ / µ i 1400 10 µa 210 1 CONDITIONS Initial permeability µi as a function of frequency f 120 25°C ; ≤ 10 kHz ≤ 0,25 mT -6 ≤ 0,25 mT 80 1 kHz µi 500 mT 25°C ; 10 kHz 88 2000 A/m 1 µΔ 100 25°C ; 0,16 MHz 40 25°C ; 10 kHz 50 5000 A/m aF ≤ 18 Tmax 200 10 -6 /K 60 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 250 120 200 100 150 µa µΔ 80 60 100 40 50 20 ΔB = 2 mT 0 100 f = 1 kHz 0 1000 H_ / A/m 10000 10 Magnetization curves 1000 Amplitude permeabilität µa as a function of magnetic field strength Hs 2000 250 1800 1600 200 1400 1200 150 1000 µa B / mT 100 Bs / mT 800 100 600 400 50 200 0 -5000 f = 1 kHz 0 5000 10000 15000 H / A/m 20000 25000 0 100 30000 185 1000 Hs / A/m 10000 B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL Unipolar losses (20% ripple) Unipolar losses (30% ripple) 10000 10000 100 kHz Pv / mW/cm³ 100 kHz 75 kHz 50 kHz 100 1000 Pv / mW/cm³ 1000 25 kHz 10 1000 2000 3000 H_ / A/m 4000 Specific power loss Pv as a function of frequency f and induction Bs kH kH z 10 0 10 kH z 40 Pv / mW/cm³ z 10000 1000 100 10 10 100 Bs / mT 50 kHz 25 kHz 100 10 1000 5000 1000 186 75 kHz 2000 3000 H_ / A/m 4000 5000