Careful Fe-Si Iron Powder Core with High Energy Storage for Battery Charging

High saturation iron-silicon powder cores designed for EMI suppression and power conversion applications. Fully compliant with RoHS and REACH standards.

Iron-Silicon Powder Cores are high-performance magnetic components manufactured by pressing insulated iron-silicon alloy powder, creating a uniform distributed air gap structure throughout the core. Their typical operating frequency ranges from 50 kHz to 500 kHz, with select grades reaching up to 1 MHz.

Primarily toroidal in shape, these cores are wound directly with enameled or stranded wire and can be assembled with plastic bases for convenient PCB mounting. Functionally, they are designed for power conversion and energy storage, excelling in applications with high DC bias such as:

• PFC inductors
• Output filter chokes
• Differential-mode inductors
• Buck/boost inductors

Magnetic properties feature an initial permeability of 26μ to 90μ and a high saturation flux density of approximately 1.5 T, delivering excellent DC bias capability and low core loss at high frequency.

• Switch-mode power supplies
• Photovoltaic inverters
• UPS systems
• EV on-board chargers and DC-DC converters
• Industrial power supplies
• High-power LED drivers

• 25+ Years of Expertise: Comprehensive mould library for various SCRC Type Cores with flexible dimensional and material customization
• Factory-Direct Pricing: Significant cost advantage with true factory prices, eliminating middlemen
• Ready Stock & Fast Dispatch: Well-managed warehouse with basic models in stock for quick order processing
• Full Compliance: RoHS, REACH, and ISO 9001 certified for hassle-free export
• Customization & Logistics: Flexible customization options and competitive shipping rates for bulk orders

Hangzhou Careful Electronics Co., Ltd., a subsidiary of Huzhou Careful Magnetism Co., Ltd., specializes in international client development. Established in 2001 as a key enterprise in Huzhou City, the company is recognized as a "High and New Technology Enterprise in Zhejiang Province."

With over 25 years of industry experience and three manufacturing facilities, Careful employs over 1,000 staff including 120 management and technical professionals. The company operates a technological center equipped with international-level automatic magnetic material examination equipment and advanced production lines.

Core product lines include EMI Core Series (Ferrite core & Dust core) and Inductance Series, comprising 2 categories with 2,000 specifications. Annual production capacity reaches 6,000 tons of soft ferrite core, establishing Careful as China's largest EMI core production base with annual sales exceeding $100 million USD.

We offer flexible customization options including color, packaging, customer logo, and material composition for larger orders and valued clients.

Over 60% of products are exported to Southeast Asia, USA, and Europe, serving major clients including AOC, DAWOO, and Haier Electric appliances. The company maintains ISO9001, RoHS, and REACH certifications with a comprehensive quality control system.

Based in Zhejiang, China since 2001, we serve domestic markets (60%) and international clients across Eastern Europe, South Asia, North America, Europe, and other global regions. Our organization employs 280+ professionals.

We implement pre-production sampling before mass production and conduct final inspection before shipment to ensure consistent product quality.

Our product portfolio includes Soft Ferrite Core, Amorphous core, Inductors, and NiZn ferrite components.

As China's largest ferrite core manufacturer with over 30 years of experience, we also produce Amorphous core, SMD core, and inductors. Our client portfolio includes Microsoft, GREE, Midea, SAMSUNG, and ASUS.