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46 Material Data Sheet

Our latest material development is a MgZn ferrite intended for suppression applications. This material does not use nickel in its composition, hence it avoids potential environmental issues as well as reduces the cost of the material component of suppression parts. The suppression performance of this 46 material is similar to our widely used 43 material.

This new Fair-Rite grade 46 is supplied in the larger sizes of the round cable EMI suppression and snap-it cores.

46 Material Characteristics
Property Unit Symbol Value
Initial Permeability @ B < 10 gauss µi 500
Flux Density @ Field Strength Gauss
Oersted
B
H
3000
10
Residual Flux Density Gauss Br 1900
Coercive Force Oersted Hc 0.40
Loss Factor @ Frequency 10 -6
MHz
Tan δ/ µi 60
0.1
Temperature Coefficient of Initial Permeability (20 -70°C) %/°C
Curie Temperature °C Tc >140
Resistivity ohm-cm ρ 1×108

**** Characteristic curves are measured on standard Toroids (18/10/6 mm)  at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.