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JHNO50.5*54*18 Nanocrystalline Common Mode Choke Core for EV On-Board Chargers (OBC)

JHNO50.5*54*18 Nanocrystalline Common Mode Choke Core for EV On-Board Chargers (OBC)

Engineered for automotive EV/HEV applications, this high-performance Nanocrystalline core delivers superior EMI suppression for On-Board Chargers (OBC) and DC/DC converters. Featuring a high saturation flux density (Bs=1.25T) and extreme thermal stability, it allows engineers to downsize magnetic components while maintaining high impedance across a wide frequency range (-40°C to +140°C).

  • Item No :

    JHNO 55*31*18
  • Order(MOQ) :

    Flexible, Adjust based on customer requirements
  • Certification :

    IATF16949, ISO9001, RoHS
  • Trademark :

    JH
  • Origin :

    China
  • HS Code :

    8504909000 ( Cores) or 8504500000 (Inductors)
  • Production Capacity :

    2,000,000 / Month

                                                       Nanocrystalline Common Mode Choke Core                                                                                                                                                                                                                   Nanocrystalline Common Mode Choke Core

The Nanocrystalline Core (50.5*54.0*18.0) is a high-performance magnetic component designed to solve critical thermal and EMI challenges in modern power electronics. Unlike traditional Ferrite cores, this iron-based nanocrystalline material maintains stable magnetic properties even under high thermal stress, boasting a Curie temperature of 570°C and a saturation flux density of 1.25 T.

With a generous Inner Diameter (ID = 31.3 mm) and a high inductance factor (AL ≥ 100.0 μH @ 1kHz), this core is optimized for high-current windings, making it the ideal solution for common mode chokes where space is limited but high impedance is required.

 

Key Features & Benefits

  • High Saturation Induction (Bs = 1.25T): significantly higher than Ferrite (~0.4T), preventing saturation under high current spikes and allowing for volume reduction.

  • Superior Inductance: Tested at minimum 100.0 μH (1kHz, 0.3V), providing excellent broadband attenuation for EMI suppression.

  • Thermal Robustness: The core material is stable up to 570°C, while the robust PBT housing ensures reliable operation and insulation up to 140°C.

  • Protective Packaging: Encapsulated in a square, top-seam Black PBT casing (UL94-V0 equivalent material) to protect the nanocrystalline ribbon from mechanical stress and ensure consistent electrical performance.

 

Applications

  • Automotive: EV On-Board Chargers (OBC), DC/DC Converters, and Motor Drive filtering.

  • Power Supplies: High-power Switching Mode Power Supplies (SMPS) and UPS systems.

  • Renewable Energy: Solar Inverters and Wind Power Converters requiring high efficiency and compact design.

 

Technical Specifications

[Note: Custom sizes and inductance values are available upon request.]

 

 

Nanocrstelline Inductors VS Ferrite Inductors in Size and Weight Case Study: 

 

AC Common Mode Choke:
📉 62% Weight Reduction
📉 54% Volume Reduction
🌡️ Cooler Operation: 6°C lower temp rise compared to ferrite.

DC Common Mode Choke:
📦 Core weight and volume reduced to 1/3 of the original design.
⚡ significantly higher impedance and better thermal stability.

 

💰 The Economic Reality (TCO): Many engineers worry about the initial material cost. Our case study shows:
Efficiency Gains: 5% - 27% improvement depending on load.
ROI: The slightly higher component cost is recovered in 1-4 years through energy savings.
System Savings: Smaller cores mean smaller PCBs, lighter cooling systems, and increased payload for commercial vehicles.

 

Quick View for Material comparison

 

We operate a fully automated smart factory. We do not only rely on manual labor; rely more on precision machines. This ensures every product is identical, stable, and high-quality.
 
 Why choose us?
  • Consistent Quality: Our automated lines remove human error. You get stable CpK values for every batch.
  • Fast Response: Big companies take months for a sample. We can finish custom samples in 3-4 weeks. 
  • Certified Factory: We hold IATF 16949 certs. We are audit-ready for automotive clients.
  • Reliable: We 100% test by CDC Machine and manual check random, to ensure all products qualified. 
 
🛠️ What we make:
1. Magnetic Cores (The Material)
Nanocrystalline & Amorphous Cores (1K107, 1K107B).High permeability 110K μi and 190K μi options available.
Performance:  quality equal to FINEMET®/VITROPERM®, but faster delivery and flexible order quantity.
 
2. Finished Inductors (The Component)
  • EMC Parts: Common Mode Chokes (CMC), EMI Filters.
  • Power Parts: PFC Inductors, Output Chokes, Current Transformers.
  • Custom Assemblies: High-Impedance CMC Assemblies with busbar.
Note: All parts are 100% Hi-Pot tested.  All components guarantee 3-5 years.

 

Are thermal management or EMI issues the bigger headache in your current project? Contact us now.

 

 

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