KAM250-040A Nanodust Toroid Core 62.00×32.60×25.00 40µ

KAM250-040A is a high-performance Nanodust Toroid Core manufactured by KDM, a reputable name in passive components. This magnetic core is specifically designed for applications requiring efficient energy storage and conversion, primarily in power electronics. Its toroidal shape inherently offers superior magnetic shielding and reduced electromagnetic interference (EMI) compared to other core geometries, making it an ideal choice for inductors, transformers, and chokes. The Nanodust material, a specialized powdered iron alloy, provides a unique combination of high saturation flux density and low core losses across a wide frequency range, ensuring optimal performance in demanding power applications.

Key Specifications

The Series, ‘Nanodust’, denotes the advanced material composition, indicating its suitability for high-frequency and high-power applications where traditional ferrite or iron powder cores might fall short. The Weight (g) of 7.730 grams is crucial for mechanical design and overall product weight considerations, especially in portable or space-constrained devices. The Core Material, ‘Nanodust’, is a proprietary blend offering excellent magnetic properties, including high saturation and distributed air gap characteristics, which are vital for preventing saturation in DC bias applications. The Mounting Type, ‘Through Hole’, suggests that this component is designed for secure, permanent mounting on printed circuit boards or chassis using a central hole, ensuring robust mechanical stability. As a Component Type, ‘Magnetic Core (Toroid)’, it highlights its primary function as the central magnetic element for forming inductors or transformers. The AL Value (nH/N²) of 128 indicates the inductance factor per turn squared, a critical parameter for calculating the inductance of a coil wound around the core. A higher AL value means fewer turns are needed for a given inductance. The Permeability (µ) of 40 signifies the core’s ability to concentrate magnetic flux, directly influencing the inductance of a coil. This specific permeability is optimized for certain frequency ranges and power levels. The Effective Area Ae (cm²) of 3.675 and Effective Length le (cm) of 14.370 are geometric parameters used in magnetic circuit calculations, essential for determining flux density and magnetic field strength. The Dimensions OD×ID×HT (mm) of 62.00×32.60×25.00 provide the precise outer diameter, inner diameter, and height, which are fundamental for mechanical integration and winding design. The Effective Volume Ve (cm³) of 52.810 is another key parameter for calculating energy storage capacity and core losses. Finally, the Dimensions After Coating (mm) of 63.10×31.37×26.27 account for the protective coating, which is important for final product assembly and insulation considerations.

Features and Benefits

• High Saturation Flux Density: The Nanodust material allows for higher energy storage capability before saturation, enabling smaller and more efficient inductor designs, especially in high-current applications.
• Low Core Losses: Optimized material composition minimizes energy dissipation as heat, leading to improved efficiency and reduced thermal management requirements in power conversion circuits.
• Distributed Air Gap: The inherent distributed air gap of Nanodust cores provides excellent DC bias performance, preventing inductance rolloff under high DC currents, which is crucial for power supply chokes.
• Compact Toroidal Form Factor: The toroidal shape offers superior magnetic coupling and self-shielding, minimizing EMI and allowing for more compact designs compared to other core types.
• Wide Operating Frequency Range: Suitable for a broad spectrum of frequencies, from low-frequency power applications to higher-frequency switching power supplies, offering versatility in design.

Typical Applications

The KAM250-040A Nanodust Toroid Core finds extensive use in various demanding electronic applications. One primary application is in Switch-Mode Power Supplies (SMPS), where it is used to construct output inductors and PFC (Power Factor Correction) chokes. Its low core losses and high saturation characteristics are critical for the efficiency and stability of these power conversion stages. Another significant area is in DC-DC Converters, particularly in automotive electronics and industrial power systems, where it forms the core of energy storage inductors that smooth current and voltage. Furthermore, it is highly suitable for EMI/RFI Filters, where its ability to attenuate unwanted noise across a wide frequency range helps in achieving electromagnetic compatibility in sensitive electronic equipment. In renewable energy systems, such as Solar Inverters and Wind Turbine Converters, these cores are employed in the inductive components that manage power flow and improve system efficiency. Lastly, due to its robust performance, it is also utilized in High-Current Inductors and Chokes for motor drives and industrial automation, where reliable current handling and stable inductance are paramount.

The KAM250-040A Nanodust Toroid Core from KDM is a reliable and high-performance component for a wide array of power electronics designs. This essential passive component is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring timely availability for your projects.

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