Highly effective against wide frequency conduction noise!! Common mode choke coil using nano-crystalline soft magnetic materials.

We have developed a common mode choke coil at Seiwa Electric. By using a new nano-crystal material for the core, we can achieve higher effectiveness. By switching to the nano-crystal common mode choke coil, it is possible to reduce the capacitance of surrounding capacitors, allowing for space-saving designs.
(Nano-Crystal Core)
This alloy has an ultra-fine crystalline grain structure, high saturation magnetic flux density, and excellent soft magnetic properties, making it suitable for applications related to noise, power supply, and communications.
(Main Applications)
- Noise-related: Noise filters (common mode chokes), zero-phase reactors, bead cores
- Communication-related: Pulse transformers for LAN
- Power supply-related: Switching power supplies, smoothing chokes, choke coils for active filters, cut cores for inverter transformers
- Sensor-related: Current sensors, zero-phase current transformers, leakage circuit breakers
- Pulse power-related: High-voltage pulse transformers
- Others: Inverter transformers for vehicles
(Features)
- High saturation magnetic flux density
- High permeability
- Low core loss
- Low magnetostriction (zero magnetostriction is also possible)
- Good temperature characteristics
- Small aging changes
- Good high-frequency characteristics

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