JFE Steel's uniquely developed non-oriented electromagnetic steel sheet "Super Core" with excellent high-frequency characteristics.
"Super Core" is a non-oriented electrical steel sheet with excellent high-frequency characteristics, uniquely developed by JFE Steel Corporation. It has achieved a silicon (Si) content of 6.5%, which was previously considered impossible, making low noise, low loss, and high permeability possible. It is being adopted in various fields, including high-frequency reactors, active filters for power factor improvement, and more recently, boost circuits for hybrid vehicles, and its applications are continuing to expand.
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basic information
【Material】 ■JNEX - Thickness: 0.10mm - Standard code: 10JNEX900 - Features: A silicon steel sheet with a uniform silicon content of 6.5% in the thickness direction. Ideal for low iron loss and low noise (zero magnetostriction) in high-frequency applications. ■JNHF - Thickness: 0.10mm, 0.20mm - Standard code: 10JNHF600, 20JNHF1300 - Features: A silicon steel sheet with a silicon content of 6.5% only on the surface. Exhibits even lower iron loss than JNEX in high-frequency ranges exceeding 5kHz. ■JNRF (New product in 2020) - Thickness: 0.10mm, 0.20mm - Standard code: 10JNRF, 20JNRF - Features: Achieves both "reduction of high-frequency iron loss" and "improvement of magnetic flux density," enabling significant efficiency improvements in motors. Ideal for motor applications such as electric vehicle drive motors, home appliance motors, and drone motors. *Super Core, JNEX, JNHF, and JNRF are trademarks of JFE Steel Corporation.
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Applications/Examples of results
High-frequency reactors, high-frequency transformers, motors, medical devices, power conditioners, UPS, railways, hybrid cars, etc.
Line up（5）
| Model number | overview |
|---|---|
| Temporary Adhesive Laminated Core | This is a laminated adhesive core using Super Core. It is manufactured using a dedicated laminated adhesive mold system. Mass production is easy. It has high cost performance. |
| High-Precision Adhesive Laminated Core | This significantly improves lamination accuracy. It is optimally suited to meet the needs that require high performance. Thanks to excellent adhesive and pressing technology, it can accommodate various shapes. |
| R Block Core | By rounding the corners of the block core, it allows for band fastening, enabling assembly processes similar to cut cores. There are no initial costs for molds, and sizes such as vertical, horizontal, and lamination thickness can be freely determined. It is low cost and allows for mass production. It is manufactured using Super Core material, with JNEX core for high-frequency low noise and JNHF core for high-frequency low iron loss. |
| Cut Core / Press Core | This is a cut core using Super Core. It can flexibly accommodate shapes with general-purpose molds. It is possible to drill holes for fixing. Custom options such as El cores are available. A robust prototype system using wire cutting processing is in place. It is suitable for motor cores. |
| Cut Core | Sizes compatible with the CS series, SC series, and SL series of the Japan Wound Iron Core Industrial Association are available, and we also accept orders for custom sizes beyond the standard. |
Company information
Founded in 1903, Ozeki Co., Ltd. continues to deliver products that meet the needs of the times as a specialized trading company for chemicals and electronic components for the next 100 years. The Chemical Products Sales Department provides various color materials such as inorganic pigments, organic pigments, dyes, and processed pigments that match the diverse color plans and needs from manufacturers in various fields including paints, inks, construction materials, and plastics. We are capable of dispersion processing and grinding using equipment such as Henschel mixers and atomizer grinders at our contracted processing facilities. Additionally, we handle functional materials such as UV absorbers and various additives, as well as construction-related materials. The Electronic Components Sales Department has developed suppliers not only in Japan but also in China for many years. Currently, we specialize in magnetic materials, coils, and transformers, offering a complete lineup from small to large products, with many items available exclusively through Ozeki in Japan. We provide better products at lower prices, ensuring high cost performance. Since 2013, we have started handling metal cutting processed parts and supply components to major domestic companies. 【Locations】 ■ Domestic Offices: Tokyo Headquarters, Osaka Branch ■ Overseas Subsidiary: Ozeki (Hong Kong) Limited