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B64290P0745X038 Datasheet(PDF) 5 Page - TDK Electronics |
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B64290P0745X038 Datasheet(HTML) 5 Page - TDK Electronics |
5 / 7 page 5 07/14 Symbols and terms Ferrites and accessories Symbol Meaning Unit ΔL/L L0 LH Lp Lrev Ls le lN N PCu Ptrans PV PF Q R RCu Rh ΔR h Ri Rp Rs Rth RV s T ΔT TC t tv tan δ tan δ L tan δ r tan δ e tan δ h tan δ/μ i U Û Ve Z Zn Relative inductance change Inductance of coil without core Main inductance Parallel inductance Reversible inductance Series inductance Effective magnetic path length Average length of turn Number of turns Copper (winding) losses Transferrable power Relative core losses Performance factor Quality factor (Q = ωL/R s = 1/tan δL) Resistance Copper (winding) resistance (f = 0) Hysteresis loss resistance of a core Rh change Internal resistance Parallel loss resistance of a core Series loss resistance of a core Thermal resistance Effective loss resistance of a core Total air gap Temperature Temperature difference Curie temperature Time Pulse duty factor Loss factor Loss factor of coil (Residual) loss factor at H → 0 Relative loss factor Hysteresis loss factor Relative loss factor of material at H → 0 RMS value of voltage Peak value of voltage Effective magnetic volume Complex impedance Normalized impedance |Z|n = |Z| /N2 × ε (le/Ae) H H H H H H mm mm W W mW/g Ω Ω Ω Ω Ω Ω Ω K/W Ω mm °C K °C s V V mm3 Ω Ω/mm |
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