7

06/13

All dimensions are given in mm.

Surface-mount device

Symbol

Meaning

Unit





F





e





r









B





i





s







0





a





app





e





i









r





rev









tot







l/A



Cu





Temperature coefficient (TK)



Relative temperature coefficient of material



Temperature coefficient of effective permeability



Relative permittivity



Magnetic flux



Efficiency of a transformer



Hysteresis material constant



Hysteresis core constant



Magnetostriction at saturation magnetization



Relative complex permeability



Magnetic field constant



Relative amplitude permeability



Relative apparent permeability



Relative effective permeability



Relative initial permeability



Relative real (inductive) component of



(for parallel components)



Relative imaginary (loss) component of

 (for parallel components)

Relative permeability



Relative reversible permeability



Relative real (inductive) component of



(for series components)



Relative imaginary (loss) component of

 (for series components)

Relative total permeability



derived from the static magnetization curve



Resistivity



Magnetic form factor



DC time constant





Angular frequency;

= 2 f

1/K



1/K



1/K





Vs









Vs/Am



























s



Symbols and terms

Ferrites and accessories