77 Material 

A MnZn ferrite for use in a wide range of high and low flux density inductive designs for frequencies up to 100 kHz.

Pot cores, E&I cores, U cores, rods, toroids, and bobbins are all available in 77 material.

 


77 Material Characteristics


Property Unit Symbol Value
Initial Permeability
@ B <10 gauss
  µi 2000
Flux Density
@ Field Strength
Gauss
oersted
B
H
4900
5
Residual Flux Density Gauss Br 1800
Coercive Force Oersted Hc 0.30
Loss Factor
@Frequency
10-6
MHz
tan δµi 15
0.1
Temperature Coefficient of
Initial Permeability (20-70oC)
%/oC   0.7
Curie Temperature oC Tc >200
Resistivity Ω cm ρ 1 x 102





   

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