B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL B1.3 FERROCARIT | FE 810 A material with high thermal and temporal stability , insensible of external magnetic fields SYMBOL VALUE UNIT µi 10 ± 10% 1 tanδ / µ i 500 ≤ 0,25 mT ≤ 0,25 mT 500 mT 25°C ; 10 kHz 10000 A/m 1 µΔ Tmax 120 600 400 25°C ; 10 kHz 8 ≤ 2 800 25°C; 1 kHz 10 aF 1000 25°C ; 12 MHz -6 1 µa Magnetization curve 1200 B / mT 10 CONDITIONS 25°C ; ≤ 10 kHz 200 50000 A/m 10 -6 /K 25°C - 70°C 0 -1000 0 ≤ 10 kHz; ≤ 0,25 mT °C Incremental permeability µΔ as a function of premagnetization H µΔ 15 10 5 ΔB = 2 mT 1000 10000 20000 30000 40000 50000 60000 70000 80000 H / A/m 20 0 100 0 10000 100000 H_ / A/m - 198 -