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67 Material Data Sheet

A high frequency NiZn ferrite for the design of broadband transformers, antennas and Hi Q inductor applications up to 50 MHz.

Strong magnetic fields or excessive mechanical stresses may result in irreversible changes in permeability or losses.

Available in 67 material:
Toroids
Multi-Aperture Cores
Antenna/RFID
Rods

67 Material Characteristics
Property Unit Symbol Value
Initial Permeability @ B < 10 gauss µi 40
Flux Density @ Field Strength Gauss
Oersted
B
H
2500
20
Residual Flux Density Gauss Br 1000
Coercive Force Oersted Hc 2.5
Loss Factor @ Frequency 10 -6
MHz
Tan δ/ µi 200
50
Temperature Coefficient of Initial Permeability (20 -70°C) %/°C 0.05
Curie Temperature °C Tc >375
Resistivity ohm-cm ρ 1×107

**** 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.

Click here to download the data for 67 Material Power Loss vs. Temperature (see graph below)

Click here to download 67 Material Power Loss Density vs. Flux Density at 25°C  (see graph below)

Click here to download 67 Material Power Loss Density vs. Flux Density at 100°C (see graph below)

Click here to download 67 Material Complex Permeability vs. Frequency (see graph below)