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Toroidal Coating Nanocrystalline Cores

Toroidal Coating Nanocrystalline Cores

High-performance cores for compact, efficient EMI and power filtering

 

 

  • Order(MOQ) :

    1000 PC
  • Payment :

    T/T or LC
  • Product Origin :

    China
  • Color :

    Blue, Green, Black or customized
  • Shipping Port :

    Shenzhen, China or Guangzhou, China
  • Lead Time :

    30 Working Days

Dongguan JH Amorphous' Toroidal Coating Nanocrystalline Cores are engineered for precision electromagnetic interference (EMI) suppression and high-efficiency inductive components. With a compact toroidal geometry and uniform nanocrystalline microstructure, these cores offer outstanding magnetic performance across a wide frequency range, especial for high-frequency, making them ideal for high-end power electronics, automotive, industrial, and renewable energy applications.

 

Key Features

 

  • Ultra-high Permeability
    Permeability values exceeding 80,000 – ideal for compact, space-efficient choke designs.

  • Exceptional Low Core Loss
    Significantly lower than ferrite or amorphous materials at low and medium frequencies.

  • Excellent Thermal Stability
    Operates reliably from –40°C to +140°C, with stable performance under thermal cycling.

  • Low Magnetostriction
    Minimizes audible noise and mechanical stress, improving device lifespan and user comfort.

  • Durable Coating
    Epoxy or polyester coatings provide insulation, corrosion resistance, and mechanical protection.

  • Compact Toroidal Shape
    Offers minimal magnetic leakage, easy coil winding, and excellent field symmetry.


 

Typical Applications

  • Common Mode Chokes
    Superior EMI filtering in compact footprints for industrial drives, SMPS, and solar inverters.

  • Inductors & Transformers
    Suitable for differential mode inductors, flyback transformers, and push-pull converters.

  • EV/HEV Onboard Chargers
    High thermal and electrical stability make it ideal for automotive-grade EMI solutions.

  • Smart Meters / Energy Systems
    For precision current sensing and compact magnetic components.


 

Custom Options

 
Parameter Range/Option
Outer Diameter 4 mm – 130 mm (TYP)
Coating Type Epoxy, Polyester, Custom Colors
Magnetic Permeability

20,000 – 100,000 (μₑ)

Saturation Flux >1.2 T
Core Loss

 

Ultra-low @10 kHz–100 kHz

 
Custom sizes, permeability classes, and coatings are available upon request. Contact us for design support.
 

 

Why Engineers Choose Dongguan JH Toroidal Cores

 

  • Trusted material consistency and dimensional accuracy

  • Expert support in magnetic design optimization

  • Fast sampling and flexible batch production

  • Reliable sourcing for automotive and industrial projects


 

 

Datasheet & 3D Drawing available upon request.


 

 

Need help with magnetic selection?
Our  engineers team are ready to assist you with simulations, prototyping, and integration guidance.

 

 

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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