4

06/13

Symbol

Meaning

Unit

A



B



B

B

ˆ



Bˆ

CDF



DF



d



f



g



H



H

ˆ



h



h/



i

2



I



Iˆ

J



k



L

Cross section of coil



Effective magnetic cross section



Minimum inductance at defined high saturation (



Minimum core cross section



Winding cross section



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

nH



nH

















F = As/ V







J















mm



A/m



A/m



A/m



A/m







A



A



A



J/K







H = Vs/A

Symbols and terms

Ferrites and accessories

Symbols and terms