B65857C Datasheet, PDF (5/8 Pages) TDK Electronics – Ferrites and accessories

Ferrites and accessories
Symbols and terms
Symbols and terms
Symbol
A
A_e
A_L
A_L1
A_min
A_N
A_R
B
B
Bˆ ^
Bˆ ^
B_DC
B_R
B_S
C_0
CDF
DF
d
E_a
f
f_cutoff
f_max
f_min
f_r
f_Cu
g
H
Hˆ ^
H_DC
H_c
h
h/_i ^2
I
I_DC
ˆI
J
k
k_3
k_3c
L
Meaning
Cross section of coil
Effective magnetic cross section
Inductance factor; A_L = L/N^2
Minimum inductance at defined high saturation ( _a)
Minimum core cross section
Winding cross section
Resistance factor; A_R = R_Cu/N^2
RMS value of magnetic flux density
Flux density deviation
Peak value of magnetic flux density
Peak value of flux density deviation
DC magnetic flux density
Remanent flux density
Saturation magnetization
Winding capacitance
Core distortion factor
Relative disaccommodation coefficient DF = d/_i
Disaccommodation coefficient
Activation energy
Frequency
Cut-off frequency
Upper frequency limit
Lower frequency limit
Resonance frequency
Copper filling factor
Air gap
RMS value of magnetic field strength
Peak value of magnetic field strength
DC field strength
Coercive field strength
Hysteresis coefficient of material
Relative hysteresis coefficient
RMS value of current
Direct current
Peak value of current
Polarization
Boltzmann constant
Third harmonic distortion
Circuit third harmonic distortion
Inductance
5 06/13
Unit
mm^2
mm^2
nH
nH
mm^2
mm^2
 = 10^–6
Vs/m², mT
Vs/m², mT
Vs/m², mT
Vs/m², mT
Vs/m², mT
Vs/m², mT
Vs/m², mT
F = As/ V
mm^{–4.5ï€} 


J
s^–1, Hz
s^–1, Hz
s^–1, Hz
s^–1, Hz
s^–1, Hz

mm
A/m
A/m
A/m
A/m
10^–6 cm/A
10^–6 cm/A
A
A
A
Vs/m^2
J/K


H = Vs/A