Ferrite Cores produced by Nanjing Hengci Magnetics
Ferrite material family

Ferrite Cores

Stable magnetic performance for high-frequency power conversion

Overview

Stable magnetic performance for high-frequency power conversion

Ferrite remains the standard choice where switching frequency, core loss and cost must be balanced. Our Mn-Zn grades cover power conversion from tens of kilohertz to several megahertz, while Ni-Zn grades serve higher frequency filtering and antenna applications.

Cores are produced from controlled powder, pressed and sintered in monitored cycles, then measured for inductance factor, permeability and dimensions. Gapped cores, coated surfaces, bobbins and assembled sets are available for customers who prefer a ready-to-wind component.

  • Low core loss at high frequency
  • High electrical resistivity
  • Controlled air gap option
  • Tight inductance tolerance

Technical summary

Material
Mn-Zn / Ni-Zn
Frequency
10 kHz – 5 MHz
Shapes
E · EE · EI · PQ · RM · Toroid · C · U
Tolerance
±2 % to ±5 % AL

Typical applications

Switch-mode power suppliesAdapters & chargersEMI filtersLED drivers & ballastsAudio transformers

Full datasheets, B-H curves and dimensional drawings are sent with the quotation.

Products

Ferrite Cores we produce

Standard forms below. Dimensions, permeability, gap and finish are made to your drawing.

PQ Series Power CorePQ shape

PQ Series Power Core

Low lossHigh window fill
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EE / EI Core Set with BobbinE shape set

EE / EI Core Set with Bobbin

Bobbin includedAdapter use
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Toroidal Ferrite Ring CoreToroid

Toroidal Ferrite Ring Core

Closed pathEMI choke
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RM Series Low Profile CoreRM shape

RM Series Low Profile Core

ShieldedCompact
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Gapped Ferrite C CoreC shape

Gapped Ferrite C Core

Custom gapEnergy storage
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Ni-Zn Ferrite Rod CoreRod

Ni-Zn Ferrite Rod Core

High frequencyAntenna use
Inquire
Applications

Where these cores are used

Selection is driven by frequency, flux density, temperature and assembly constraints rather than a catalogue part number.

Switch-mode power supplies

Switch-mode power supplies

Main transformer and output inductor cores selected for loss at the actual switching frequency and load profile.

EMI filtering

EMI filtering

Toroidal and gapped cores for common-mode chokes, with permeability chosen for the target noise band.

Lighting & ballasts

Lighting & ballasts

Stable inductance over temperature for LED drivers and electronic ballasts in continuous operation.

Gallery

Material, process and finish

Photographs of ribbon, core sections and finishing steps. Click an image to enlarge.

Other materials

Compare material families

Need ferrite cores to your drawing?

Send dimensions, target permeability or inductance, operating frequency and quantity. Samples can be arranged before series production.

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