Manganese Zinc Ferrite Cores ◆ 広温度域対応 低ロス材質 材質 Low Loss Material for Wide Temperature Material:3H 項目 Parameter 初透磁率 Initial permeability 飽和磁束密度 Saturation flux density 記号 Symbol μi Bs 残留磁束密度 Remanent flux density Br 保磁力 Coercivity Hc 相対損失係数 Relative loss factor 材料履歴定数 Hysteresis material constant 初透磁率の相対温度係数 Relative temperature coefficient キュリー温度 Curie temperature 抵抗率 Resistivity 密度 Density tanδ/μi ηB αF Tc 測定条件 Conditions F:10kHz B<0.25mT F:10kHz H:800A/m H→0 ( from near saturation ) f:10kHz B→0 ( from near saturation ) f:10kHz f:100kHz f:10kHz B<1.5mT∼3.0mT f:10kHz B<0.25mT T:25∼55℃ f:10kHz B<0.25mT ρ 測定値 Value 単位 Unit 23 3300±25% − 23 100 23 530 415 90 100 70 23 9.5 100 7 23 <2 10-6 23 <0.3 10-6/mT <2 10-6/℃ 240 ℃ 5 Ωm 4.85×103 kg/m3 23 d 25kHz-200mT 100kHz-200mT パワーロス Power Loss ℃ Pcv 200kHz-100mT 500kHz-50mT − 79 − 23 80 100 120 23 80 100 120 23 80 100 120 23 80 100 120 50 40 42 45 340 295 305 350 185 150 155 170 220 200 205 230 mT mT A/m High kW/m3 kW/m3 kW/m3 kW/m3 -B 材質 Material : 3H ①複素透磁率 VS 周波数 Complex Permeability ②初透磁率 VS 温度 Initial Permeability (μi) vs. Temperature vs. Frequency [ measured with φ22 toroid core ] [ measured with φ22 toroid core ] 104 7000 6000 103 4000 μi μ'・μ" 5000 2 10 ━━━ : μ' −−− : μ" 3000 2000 10 1000 1 102 10 103 0 -40 104 0 40 Frequency (kHz) 80 120 160 200 240 280 Temperature (℃) High -B ③B−H 曲線 ④飽和磁束密度 VS 温度 Saturation Magnetic Flux Density vs. Temperature [ measured with φ22 toroid core ] 600 Dynamic Magnetization Curves 23℃ Magnetic flux Density B(mT) 500 100℃ 400 300 200 Saturation Magnetic Flux Density(mT) [ measured with φ22 toroid core ] 600 500 400 300 100 200 20 0 200 400 600 40 60 80 Temperature (℃) 800 Magnetic Field Strength H(A/m) − 80 − 100 材質 Material : 3H ⑤コアロス VS 温度 ⑥コアロス VS 磁束密度 Power Loss (Pcv) vs. Temperature Power Loss (Pcv) vs. Flux Density [ measured with φ22 toroid core ] [ measured with φ22 toroid core ] 104 500 ━━━ : 23℃ −−− : 100℃ 103 3 f: 100kHz B:200mT 300 f: 500kHz B:50mT 200 f: 200kHz B:100mT Power Loss [Pcv : kW/m3] 400 Power Loss [Pcv : kW/m ] f:200kHz f:100kHz f:25kHz 102 10 1 100 f: 25kHz B:200mT 10-1 10 0 20 40 60 80 100 120 102 103 Flux Density B(mT) Temperature (℃) High -B ⑭ コアロス VS 周波数 Power Loss (Pcv) vs. Frequency [ measured with φ22 toroid core ] 104 ━━━ : 23℃ −−− : 100℃ 3 Power Loss [Pcv : kW/m3] 10 Bm:200mT Bm:100mT 102 Bm:50mT 10 1 10-1 10 102 103 Frequency (kHz) − 81 −
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