INDUSTRY COMPONENT

Core Material

Core material for receiver coil assemblies in electromagnetic systems, providing magnetic flux concentration and energy transfer efficiency.

Component Specifications

Definition
Core material is the central magnetic component in receiver coil assemblies, designed to concentrate magnetic flux lines, enhance inductive coupling efficiency, and minimize energy losses during wireless power transfer or signal reception. It determines the coil's inductance, quality factor (Q), and frequency response characteristics.
Working Principle
Operates on electromagnetic induction principles where alternating current in a transmitter coil generates a magnetic field; the core material in the receiver coil concentrates this field to induce voltage, enabling efficient energy or signal transfer through optimized magnetic permeability and low hysteresis losses.
Materials
Typically ferrite (Mn-Zn or Ni-Zn), powdered iron, amorphous metals, or nanocrystalline alloys; selected based on frequency range (kHz to MHz), permeability (μr 50-5000), saturation flux density (0.3-1.5 T), and core loss specifications.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Core Loss<100 mW/cm³ @ 100 kHz
Permeability100-5000 μr
Frequency Range20 kHz - 10 MHz
Curie Temperature>200°C
Saturation Flux Density0.3-1.5 T

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 9001, IEC 62368-1, ASTM A773

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Core saturation leading to efficiency drop
  • Thermal runaway from excessive losses
  • Mechanical brittleness in ferrite cores
  • Frequency-dependent permeability variations
FMEA Triads
Trigger: Overcurrent or high-temperature operation
Failure: Core saturation reduces inductance and efficiency
Mitigation: Design with safety margins, use materials with high saturation flux density, implement thermal monitoring
Trigger: Material impurities or inconsistent manufacturing
Failure: Increased core losses and reduced Q factor
Mitigation: Adhere to ISO/IEC standards, conduct batch testing, source from certified suppliers

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±5% on permeability, ±2% on dimensional specs per ISO 2768-m
Test Method
Impedance analysis for inductance/Q factor, B-H curve measurement for magnetic properties, thermal cycling per IEC 60068-2-14

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Core Material

3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Useon Technology Limited
Zhenjiang (Jurong factory), Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Evernew Transformer
Sichuan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Motorneo
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What factors determine core material selection for receiver coils?

Key factors include operating frequency, required permeability, saturation flux density, core loss limits, temperature stability, and cost; ferrite is common for high-frequency applications, while powdered iron suits lower frequencies.

How does core material affect receiver coil efficiency?

Core material influences efficiency by concentrating magnetic flux, reducing eddy current and hysteresis losses, and optimizing the quality factor (Q), directly impacting energy transfer rates and signal integrity.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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