77 Material Data Sheet
A MnZn ferrite for use in a wide range of high and low flux density inductive designs for frequencies up to 100 kHz.
Available in 77 material:
Pot Cores
E&I Cores
U Cores
Rods
Toroids
Bobbins
77 Material Characteristics
| Property | Unit | Symbol | Value |
| Initial Permeability @ B < 10 gauss | µi | 2000 | |
| Flux Density @ Field Strength | Gauss Oersted |
B H |
5100 5 |
| Residual Flux Density | Gauss | Br | 1800 |
| Coercive Force | Oersted | Hc | 0.25 |
| Loss Factor @ Frequency | 10 -6 MHz |
Tan δ/ µi | 15 0.1 |
| Temperature Coefficient of Initial Permeability (20 -70°C) | %/°C | 1.2 | |
| Curie Temperature | °C | Tc | >200 |
| Resistivity | ohm-cm | ρ | 100 |
**** 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.
Material Safety Data Sheet (MSDS)
Click here to download Complex Permeability vs. Frequency (CSV)
