Nanocrystalline Gap Cores
Amorphous and nanocrystalline gap cores have high saturation flux density, low core loss, high permeability, can withstand large working current. They are suitable for PFC choke, output filter inductor,solar inverter inductor, hall effect transducer.
Characteristics
High initial permeability: Larger insert loss, better inhibiting effect on conducted interference than ferrite.
High saturation induction: about 2-3 times higher than ferrite, hardly magnetized to saturate in the cases of current strong interference.
Excellent temperature stability: higher Curie temperature, the changes in alloy performance obviously lower than ferrite under the circumstance of larger temperature fluctuations, showing excellent temperature stability
Flexible frequency characteristic: More flexible to obtain the required frequency characteristic through adjustment process.
Physical Properties
| Saturation Magnetization(Bs) | 1.25T | Saturation Magnetostrictive Coefficient(λs) | <2×10-6 |
|---|---|---|---|
| Curie Temperature(Tc) | 560℃ | Density(d) | 7.3g/cm3 |
| Crystallization Temperature(Tx) | 510℃ | Resistivity(ρ) | 130μΩ-cm |
| Hardness(Hv) | 800 | Continuous Operating Temperature Range | -55~130℃ |
Magnetic Properties
| Annealing Method | Non-magnetic Annealing |
|---|---|
| Initial Permeability | >150,000 |
| Maximum Permeability | >600,000 |
| Residual Magnetic Flux Density | 0.6T |
| Coercivity | <0.8A/m |
| Iron Loss P(20kHz,0.5T) | <25W/kg |
| Iron Loss P(100kHz,0.3T) | <150W/kg |
| Iron Loss Change Rate (-55℃~125℃) | <15% |
Applications
PFC choke
Output filter inductor
Solar inverter
Hall effect transducer
Performance Curves
Core Dimension
OD-Outside Diameter ; ID-Inside Diameter ; HT- Height
Specification
Cores with other specifications can be provided concerning to customer demand.
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