Ferroxcube proudly introduces 3C97T for WPT, our latest MnZn ferrite material specifically designed for wireless power transfer (WPT) applications in electric vehicles (EVs).
This material delivers ultra-low losses at 85 kHz, the standard frequency defined by SAE J2954 for EV wireless charging systems. Moreover, 3C97T for WPT remains effective up to 200 kHz, making it suitable for a wide range of global charging protocols.
To ensure realistic performance expectations, all material data has been measured on toroids machined from large-format tiles, simulating real-life usage. While this approach may show slightly higher losses compared to ideal toroids, it gives designers the confidence to work with values close to actual operating conditions.
A low-loss material specifically engineered for Wireless Power Transfer (WPT) applications, optimized for operation at frequencies ranging from 20 to 250 kHz, with 85 kHz being the most commonly used frequency as outlined by SAE J2954. Specifications are d erived from process conditions for tiles and validated on toroidal cores machined from these tiles, ensuring consistent application performance across all products.
| Ferroxcube 3C97T for WPT | |||
|---|---|---|---|
| SYMBOL | CONDITIONS | VALUE | UNIT |
| μi | 25ºC; 10kHz; 0.25mT | 3000 ± 20% | |
| μa | 100ºC; 100kHz; 200mT | ≈ 4000 | |
| B | 25ºC; 10kHz; 1200A/m | ≈ 500 | mT |
| 100ºC; 10kHz; 1200A/m | ≈ 390 | ||
| 140ºC; 10kHz; 1200A/m | ≈ 325 | ||
| Pv | 25ºC; 85kHz; 200mT | ≈ 275 | kW/m3 |
| 100ºC; 85kHz; 200mT | ≈ 350 | ||
| 140ºC; 85kHz; 200mT | ≈ 425 | ||
| Pv | 25ºC; 100kHz; 200mT | ≈ 350 | kW/m3 |
| 100ºC; 100kHz; 200mT | ≈ 425 | ||
| 140ºC; 100kHz; 200mT | ≈ 550 | ||
| Pv | 25ºC; 200kHz; 100mT | ≈ 150 | kW/m3 |
| 100ºC; 200kHz; 100mT | ≈ 175 | ||
| 140ºC; 200kHz; 100mT | ≈ 250 | ||
| ρDC | 25ºC | ≈ 12 | Ωm |
| Tc | ≥ 230 | ºC | |
| Density | ≈ 4750 | kg/m3 | |
| Measured on T25/15/5 machined from a WPT tile. | |||
We offer a broad selection of ferrite tiles to fit your design needs. Standard formats include surfaces up to 130 × 130 mm (nearly 170 cm²) and 5 mm / 10 mm thicknesses.
Two finishing options are available:
- • Unground sides: Ideal for cost-efficient designs.
- • Ground sides: Minimized airgap between tiles for superior EMI performance.
| Surface | Thickness | Ground sides | Ground top/bottom |
|---|---|---|---|
| 100 × 100 | 5/10 | No | Yes |
| 120 × 120 | 5/10 | No | Yes |
| 160 × 86 | 5/10 | No | Yes |
| 130 × 130 | 5/10 | Yes | Yes |
| 150 × 100 | 5/10 | Yes | Yes |
| 100 × 100 | 5/10 | Yes | Yes |
| 50 × 50 | 5/10 | Yes | Yes |
Customized Options Available
In addition to our standard product range, other sizes and thicknesses are available upon request. We also offer flexible customization options to meet specific design needs, including:
- • Alternative thicknesses for optimal magnetic and thermal performance
- • Minor size adjustments through precision grinding for tight mechanical tolerances
- • Custom-shaped parts produced via dedicated tooling, enabling features such as special form factors, integrated holes for wire routing, or chamfers that conform to the shape of your charging pad enclosure
Let us know your application requirements—we’ll help you find the perfect solution.
3C97T for Wireless Power Transfer EV Cars
