FeNi material characteristics (THA100)
Typical values with test conditions, B-H and permeability curves, core-loss density and high-temperature stability.
↓ Download PDF
FeNi · Ferrite · Co-fired
Custom Magnetic Cores & Power Inductors for Power Electronics
FeNi powder cores, ferrite cores and copper-iron co-fired molded inductors. Custom geometries, material evaluation and CNC core prototypes for engineering teams.
Power platforms
Application scenarios
Four power stages, each with a different constraint on the core: DC bias, core loss, insulation and thermal margin.
Manufacturing & sampling
Geometry changes and sampling
A geometry change is quoted per project: tooling and sampling are planned from your drawing, with scope and schedule agreed before the order.
-
01
Tooling and machining
Pressed geometries require a tool; machined samples do not. Both routes are quoted per project, with the schedule agreed before the order.
-
02
Material evaluation
FeNi powder, MnZn and NiZn ferrite compared at your operating point, under the same test conditions.
-
03
Machined samples
Machined samples are cut to the released drawing; pressed geometries follow once the tool is made.
Process
DrawingFeasibility reviewSample
Request a custom core
Technical resources
Material data with test conditions, plus engineering notes on applying it to a design.
MnZn ferrite materials
Power, high-permeability, high-Bs, wide-temperature and high-frequency MnZn grades with their characteristic values.
↓ Download PDFCertificates and qualification
ISO 9001, IATF 16949 and ISO 14001 system certificates; AEC-Q200 assessed per part number.
FeNi powder cores and ferrite cores — common questions
The questions application engineers ask most often — and if yours is not here, ask us directly.
What does YUTE Magnetics manufacture?
YUTE Magnetics is the export brand of Zhejiang Yute Intelligent Technology Co., Ltd., based in Haining, Zhejiang, China. The company produces FeNi powder cores, ferrite cores, copper-iron co-fired molded inductors and custom magnetic components.
What is a FeNi powder core?
A FeNi powder core is pressed from an iron–nickel alloy powder. The gap is distributed inside the core rather than cut into it, so inductance holds up under heavy DC bias and saturation sets in gradually instead of dropping off a cliff. That is why these cores are used for energy-storage and filter inductors in switching supplies. Material-level values — permeability, saturation flux density, core loss, temperature range — are in the FeNi material data.
Where are FeNi powder cores used?
Typical uses include AI GPU and accelerator power, on-board chargers and DC-DC converters in electric vehicles, photovoltaic inverters, battery storage, server and telecom supplies, and industrial drives. Whether a given part fits a design depends on the actual operating point.
Which certifications does YUTE Magnetics hold?
Quality management is certified to ISO 9001 and IATF 16949, and environmental management to ISO 14001. RoHS and REACH declarations are available for the materials we supply. AEC-Q200 is a product-level qualification, assessed per part number. Certificate numbers, issuing bodies and scope are available on request.
How is quality verified?
Inspection scope and sampling are defined per product type in the control plan. Process parameters and test data are recorded by production lot and can be traced back to the raw-material lot.
Can cores be customised?
Yes. Custom magnetic components can be specified by size and geometry, alloy ratio, coating and electrical parameters. One team handles quotation and application engineering, so the engineer who answers the first enquiry stays with the project through sampling and volume.
How do I select the right core for my design?
Start from the operating point: inductance, DC bias, ripple current and the temperature the part will see. Send those with your drawing and we will propose a material and a geometry, then confirm the numbers against an evaluation build.
Where is YUTE Magnetics located?
The company is based in Haining, Zhejiang, China. This website is published in English, Simplified Chinese, Traditional Chinese, German and French.
How do I request a quote, sample or datasheet?
Send the part number or your electrical requirements through the contact form, or write to info@yutemag.com or call +86-197-0387-8629. Sales and application engineering answer from the same team; samples of the standard series can be requested.
