Planar Cores (9567250802)
67 EQ Core-EQ25/8/18
67 Material
Inductive Components
Closed Magnetic Circuit
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Part Number: 9567250802
67 EQ Core-EQ25/8/18
Planar EQ and EQI cores, with their low profile, are suitable for board level installation allowing assembly without the need for plastic coilformers and can also allow windings integrated into multi-level PCBs. Planar EQ cores with their low mass and low profile are suitable for Surface Mount installations in low power filter and transformer applications.
– Planar EQ and EQI cores can be supplied with the center post gapped to a mechanical dimension, or an AL value.
Weight: 11.0 (g)
Dim | mm | mm tol | nominal inch | inch misc. |
A | 25.0 | ± 0.40 | 0.984 | _ |
B | 8.00 | ± 0.10 | 0.315 | _ |
C | 18.00 | ± 0.35 | 0.709 | _ |
D | 5.15 | ± 0.15 | 0.203 | _ |
E | 22.00 | ± 0.40 | 0.866 | _ |
F | 11.00 | ± 0.20 | 0.433 | _ |
G | 14.40 | ± Min | 0.567 | _ |
Chart Legend
Σl/A : Core Constant, le : Effective Path Length, Ae : Effective Cross-Sectional Area, Ve : Effective Core Volume
AL : Inductance Factor
Explanation of Part Numbers: Digits 1 & 2 = product class and 3 & 4 = material grade.
Electrical Properties | |
AL(nH) | 94 min. |
Ae(cm2) | 1.0 |
Σl/A(cm-1) | 4.15 |
le(cm) | 4.15 |
Ve(cm3) | 4.150 |
Amin(cm2) | 0.950 |
AL value is measured at 1 kHz, B < 10 gauss.
A high frequency NiZn ferrite intended for broadband transformers. Antennas and Hi Q inductor applications up 50MHz. Excellent stability characteristics.
Strong magnetic fields or excessive mechanical stresses may result in irreversible changes in permeability or losses.
Available in 67 material:
Multi-Aperture Beads
Rods
Toroids
Application Specific Custom Components
67 Material Characteristics
Property | Unit | Symbol | Value |
Initial Permeability @ B < 10 gauss | µi | 40 | |
Flux Density @ Field Strength | Gauss Oersted |
B H |
2300 20 |
Residual Flux Density | Gauss | Br | 1000 |
Coercive Force | Oersted | Hc | 3 |
Loss Factor @ Frequency | 10 -6 MHz |
Tan δ/ µi | 180 50 |
Temperature Coefficient of Initial Permeability (20 -70°C) | %/°C | 0.05 | |
Curie Temperature | °C | Tc | >450 |
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.
Material Safety Data Sheet (MSDS)
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)
Ferrite Material Constants
Storage and Operating Temperature
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