B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL B1.3 FERROCARIT | FE 835 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 35 ± 15% 1 tanδ / µi 180 10 µa 44 1 CONDITIONS Initial permeability µi as a function of frequency f 50 25°C ; ≤ 10 kHz ≤ 0,25 mT -6 25°C ; 0,5 MHz ≤ 0,25 mT 40 1 kHz 30 µi 500 mT 25°C ; 10 kHz 35 20 2000 A/m 1 µΔ 25°C ; 10 kHz 33 5000 A/m aF ≤ 12 Tmax 150 -6 10 /K 10 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 50 50 40 40 30 µΔ µa 30 20 20 10 10 ΔB = 2 mT 0 100 f = 1 kHz 0 1000 H_ / A/m 10000 1 10 100 1000 Bs / mT Magnetization curves Amplitude permeability µa as a function of magnetic field strength Hs 2000 50 1800 1600 40 1400 B / mT 1200 30 µa 1000 800 20 600 400 10 200 0 -1000 0 f = 1 kHz 0 0 100 10000 20000 30000 40000 50000 60000 70000 80000 H / A/m 195 1000 Hs / A/m 10000 B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL Unipolar losses (20% ripple) Unipolar losses (30% ripple) 100 1000 25 k kHz 100 z 75 kH z 50 k H 100 Hz Pv / mW/cm³ Pv / mW/cm³ kHz 100 z H 75 k Hz 50 k 10 z 25 kH 10 1 1000 2000 3000 4000 H_ / A/m 5000 1 1000 6000 Spezific power loss Pv as a function of frequency f and induction Bs 10000 Pv / mW/cm³ 1000 10 0 kH 40 100 z z kH 10 kH z 10 1 10 100 Bs / mT 1000 196 2000 3000 4000 H_ / A/m 5000 6000