B64290L0626 Datasheet, PDF (6/7 Pages) TDK Electronics – Ferrites and accessories

Ferrites and accessories
Symbols and terms
Symbol
α
α_F
α_e
ε_r
Φ
η
η_B
η_i
λ_s
μ
μ₀
μ_a
μ_app
μ_e
μ_i
μ_p'
μ_p"
μ_r
μ_rev
μ_s'
μ_s"
μ_tot
ρ
Σl/A
τ_Cu
ω
Meaning
Unit
Temperature coefficient (TK)
1/K
Relative temperature coefficient of material
1/K
Temperature coefficient of effective permeability
1/K
Relative permittivity
Magnetic flux
Vs
Efficiency of a transformer
Hysteresis material constant
mT^-1
Hysteresis core constant
A^–1H^–1/2
Magnetostriction at saturation magnetization
Relative complex permeability
Magnetic field constant
Vs/Am
Relative amplitude permeability
Relative apparent permeability
Relative effective permeability
Relative initial permeability
Relative real (inductive) component of μ (for parallel components)
Relative imaginary (loss) component of μ (for parallel components)
Relative permeability
Relative reversible permeability
Relative real (inductive) component of μ (for series components)
Relative imaginary (loss) component of μ (for series components)
Relative total permeability
derived from the static magnetization curve
Resistivity
Magnetic form factor
Ωm^–1
mm^–1
DC time constant τ_Cu = L/R_Cu = A_L/A_R
s
Angular frequency; ω = 2 Πf
s^–1
All dimensions are given in mm.
Surface-mount device
6 07/14