16 SAMWHA ELECTRONICS Material Characteristics High Permeability Material Material SM-50 Initial permeability μiac 5000 ±25% Relative loss factor -6 tanδ/μiac ×10 f:100kHz <7 Saturation flux density (1194A/m) Bs mT 25℃ 440 Remanence Br mT 25℃ 70 Coercivity Hc A/m 25℃ 6 Relative temp. factor αμr -6 ×10 /℃ 20~60℃ -0.15~1.0 Hysterisis material constant hB ×10-6/mT 10kHz, 25℃ < 0.5 Curie temperature Tc ℃ Density d kg/m Resistivity ρ > 150 4.85×103 3 25℃ Ω·m > 1.5 Note : 1) Typical values 2) The values were obtained with toroidal cores(30X8-20H) at room temperature unless indicated otherwise Complex permeability vs. Frequency Permeability vs. Temperature 7000 7000 6000 5000 5000 4000 4000 μ" 3000 3000 2000 2000 1000 1000 0 100 101 102 103 Initial permeability, μ iac Complex permeability, μ',μ" 6000 15000 10000 0 104 5000 0 -40 -20 0 20 60 80 100 120 140 160 Bm vs. Hm tan δ/μ i vs. Frequency 10 -1 450 25℃ 400 10 -2 350 10-3 Bm(mT) Relative loss factor, tan δ/μ i 40 Temperature (℃) Frequency (kHz) 10-4 10 -5 300 100℃ 250 200 150 100 10-6 50 10 -7 101 102 Frequency (kHz) 103 0 0 200 400 600 Hm(A/m) 800 1000 1200