B B1 MAGNETIC MATERIAL + CORES MAGNETIC MATERIAL B1.1 FERROCARIT | FI 221 A medium permeability NiZn ferrite for use in broadband EMI-suppression in a frequency range of 30 - 1000 MHz, as well as RF broadband transformers SYM BOL VALUE U N IT µi 250 ± 20% 1 ta n δ / µ i < 200 10 < 10 -6 10 Complex permeability 1000 ≤ 0 ,25 m T 2 5°C ; 5 M H z ≤ 0 ,25 m T -6 2 5 °C ; 1 0 k H z ≤ 1 ,5 m T to 3 m T / mT 100 2 5 °C ; 1 6 k H z 330 B µ`µ`` ηB C O N D IT IO N S 2 5 °C ; ≤ 1 0 k H z 3 0 0 0 A /m mT 10 Pv µ` µ`` 1 330 Tc 1 °C 10 100 1000 f / MHz Initial permeability µi as a function of temperature T Relative loss factor as a function of frequency f 1000 600 500 tanδ/µi / 10-6 µi 400 300 100 200 100 10 0 -50 0 50 100 150 T / °C 200 250 300 1 350 10 f / MHz Magnetization curves specific impedance 1000 400 300 |z| / Ω/cm B / mT 100 200 . 10 100 0 -1000 1 0 1000 2000 3000 4000 1 10 100 f / MHz H / A/m 163 1000