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44 Material Data Sheet

A NiZn ferrite developed to combine a high suppression performance, from 30 MHz to 500 MHz, with a very high DC resistivity.

Available in 44 material:
SM Beads
PC Beads
Wound Beads
Round Cable Snap-Its
Connector EMI Suppression Plates

44 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 1100
Coercive Force Oersted Hc 0.45
Loss Factor @ Frequency 10 -6
MHz
Tan δ/ µi 125
1.0
Temperature Coefficient of Initial Permeability (20 -70°C) % / °C 0.75
Curie Temperature °C Tc >160
Resistivity ohm-cm ρ 1×109

**** 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.