B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL B1.3 FERROCARIT | FE 897 A material with high thermal and temporal stability , for high AC amplitudes or high premagnetization. For use in power applications SYMBOL VALUE UNIT µi 125 ± 15% 1 tanδ / µ i 1600 10 µa 420 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 25°C ; 1 kHz 100 µi 500 mT 25°C ; 10 kHz 73 2000 A/m 1 µΔ 60 25°C ; 10 kHz 37 40 5000 A/m aF ≤ 18 Tmax 200 10 -6 /K 80 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 450 140 400 350 100 300 80 250 µΔ µa 120 200 60 150 40 100 20 50 f = 1 kHz ΔB = 2 mT 0 0 100 1000 H_ / A/m 10 10000 Magnetization curves 500 2000 450 1800 1600 400 1400 350 1200 300 1000 250 µa B / mT 1000 Amplitude permeability µa as a function of magnetic field strength Hs 2200 800 200 600 150 400 100 200 50 0 -5000 100 Bs / mT 0 5000 10000 15000 H / A/m 20000 25000 0 100 30000 181 f = 1 kHz 1000 Hs / A/m 10000 B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL Spezific power loss Pv as a function of frequency f and induction Bs 10000 10 0 z kH kH z kH z 40 10 kH z 100 1 Pv / mW/cm³ 1000 10 10 100 Bs / mT 1000 182