B65821 datasheet(16/17 Pages) EPCOS

16 / 17 page

06/13

All dimensions are given in mm.

Surface-mount device

Symbol

Meaning

Unit











































app













p'



p"







rev





s'



s"



tot





l/A







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



Cu = L/RCu = AL/AR



Angular frequency;

= 2 f

1/K



1/K



1/K



mT-1

A–1H–1/2



Vs/Am



m–1

mm–1



s–1

Symbols and terms

Ferrites and accessories

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