Cores for Spike Blockers
Cores for Spike Blockers enable reducing core volume and keeping excellent magnetic performance. It is convenience for engineer to design various dimensions of nanocrystalline cores. This kind of cores also reduce copper wires due to core volume reduced, reduce cost as well.
Characteristics
Small size.Reducing volume of component,reducing copper wires,reducing total cost.
Size can be custom made.Help customers quick design and mold cost free.
High insulation strength – Withstand voltage meets 1000V requirement.
High permeability – 3 Times higher inductance value than ferrite core.
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
Nanocrystalline bead core for noise suppressor for semiconductor components (e.g. Mosfet)
IGBT Driver transformer
Current transformer
High Frequency Power transformer
ISDN Network transformer
EMI/EMC Filter Common mode choke
HD camera signal transformer
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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