Standard grade
Choose a permeability grade and geometry; the datasheet gives AL, Ae, Le and loss at your operating point.
Product line 01 · Powder cores
FeNi Powder Cores
Iron-nickel alloy powder cores with soft saturation for high DC bias.
Powder cores and wound assemblies
A powder core and a wound assembly answer different questions, so each is specified with its own test conditions.
- Bare core: effective permeability, AL, Ae, Le, Ve, Bs and core loss, each stated at a frequency, flux density and temperature.
- Wound test vehicle — specified by inductance, Isat (with the drop criterion), DCR and SRF, together with the winding that produced them.
- Core loss is quoted at a stated frequency, flux density and temperature.
FeNi powder core range
| Material system | FeNi alloy powder (iron-nickel) | Composition confirmed per grade |
|---|---|---|
| Permeability | Multiple µe grades | Tolerance on the grade datasheet |
| Geometry | Toroid and custom shapes | Custom tooling on request |
| Material data | Bs, core loss and operating temperature | Per grade, with test conditions — see the material data below |
THA100 material characteristics
The material data set behind our FeNi powder cores. Values are typical for the grade; component performance still depends on geometry, winding and operating conditions.
THA100 · standard material
Typical material values
Material properties
| Property | Typical value | Test conditions |
|---|---|---|
| Material grade | THA100 | Grade designation as published. |
| Initial permeability μi | 100 | Relative permeability, dimensionless. |
| Saturation flux density Bs | 1500mT | Typical value for the grade. |
| Curie temperature Tc | > 500°C | Strictly greater than the stated value. |
| Operating temperature range | −55 to +200°C | Material range — not a rating for a finished component. |
Core loss density
Four published test points. Each loss value belongs to the frequency, flux density and temperature printed in the same row.
| Test frequency | Test flux density | Temperature | Core loss density |
|---|---|---|---|
| 100 kHz | 100mT | 100°C | 200mW/cm³ |
| 500 kHz | 50mT | 100°C | 300mW/cm³ |
| 1 MHz | 50mT | 100°C | 820mW/cm³ |
| 1 MHz | 100mT | 100°C | 4200mW/cm³ |
Typical material values for THA100. Core-loss values are specified at the stated frequency, flux density and temperature. Final component performance depends on geometry, winding design and operating conditions.
Source: YUTE material characteristics table, 2026-10-26. Typical values; the full material data sheet is available on request.
How to order
Wound test vehicle
When an inductance value matters, we quote it on a defined winding so L, Isat and DCR are reproducible.
Custom geometry
Drawings and 3D models are reviewed for press tooling; sample lead time depends on the tool.
Next steps
