KAM080-125A Nanodust Toroid Core 20.30×12.70×6.35 125µ

KAM080-125A is a high-performance Nanodust Toroid Core manufactured by KDM, a reputable name in passive components. This magnetic core is specifically designed to provide superior inductive properties in a compact form factor, making it an essential component for various power electronics and EMI/RFI filtering applications. Toroid cores, characterized by their donut-like shape, offer excellent magnetic flux containment, minimizing stray fields and improving efficiency compared to other core geometries. The Nanodust material, a proprietary blend, is engineered to deliver high permeability and low core losses, especially at higher frequencies, which is critical for modern electronic designs requiring efficient energy conversion and signal integrity.

Key Specifications

This KDM Nanodust Toroid Core boasts several critical specifications that define its performance and suitability for specific applications:

• Series: Nanodust – Indicates the advanced material technology used, known for its high saturation flux density and low core losses, particularly beneficial in high-frequency power applications.
• Weight (g): 1.140 – A relatively light component, contributing to the overall weight reduction in portable and space-constrained electronic devices.
• Core Material: Nanodust – Reinforces the use of KDM’s specialized Nanodust material, which offers a unique combination of high permeability and excellent frequency response, surpassing traditional ferrite or iron powder cores in many demanding scenarios.
• Mounting Type: Through Hole – While the core itself is not mounted via a through-hole, this attribute typically refers to the method by which the completed inductor or transformer (wound around this core) would be integrated onto a PCB, allowing for robust mechanical and electrical connections.
• Component Type: Magnetic Core (Toroid) – Clearly identifies its function as the central magnetic element for inductors, transformers, and chokes, utilizing a toroidal geometry for optimal magnetic coupling and minimal leakage.
• AL Value (nH/N²): 68 – The inductance factor, representing the inductance in nanohenries (nH) per square of the number of turns (N). An AL value of 68 nH/N² indicates the core’s efficiency in generating inductance with a given number of windings, crucial for precise inductor design.
• Permeability (µ): 125 – A measure of how easily a material can support the formation of a magnetic field within itself. A permeability of 125µ signifies its effectiveness in concentrating magnetic flux, leading to higher inductance values for a given number of turns and core size.
• Effective Area Ae (cm²): 0.226 – The cross-sectional area through which the magnetic flux passes. A larger effective area generally allows for higher power handling capabilities and lower flux density for a given magnetic field strength.
• Effective Length le (cm): 5.090 – The average length of the magnetic flux path within the core. This parameter, along with Ae, is fundamental in calculating inductance and magnetic field strength.
• Dimensions OD×ID×HT (mm): 20.30×12.70×6.35 – Specifies the Outer Diameter, Inner Diameter, and Height of the core in millimeters. These precise dimensions are critical for mechanical fit, winding space, and overall component footprint in a design.
• Effective Volume Ve (cm³): 1.150 – The volume of the core material that contributes to the magnetic properties. This value is important for calculating core losses and thermal performance.
• Dimensions After Coating (mm): 21.10×12.07×7.11 – Provides the slightly increased dimensions of the core once it has been coated, typically with an insulating material. This coating is essential for electrical isolation, preventing short circuits between windings and the core, and offering mechanical protection.

Features and Benefits

• High Permeability Nanodust Material: The KDM KAM080-125A utilizes a specialized Nanodust core material with a permeability of 125µ, enabling the creation of high-inductance components in a smaller form factor, which is crucial for miniaturization in modern electronics.
• Low Core Losses at High Frequencies: Engineered to minimize energy dissipation, this core material maintains high efficiency even when operating at elevated frequencies, making it ideal for switch-mode power supplies (SMPS) and RF applications where heat generation must be controlled.
• Excellent Magnetic Flux Containment: The toroidal geometry inherently provides a closed magnetic path, significantly reducing electromagnetic interference (EMI) and improving the overall efficiency of wound components by minimizing stray magnetic fields.
• Robust and Reliable Construction: With precise dimensions and a protective coating, the KAM080-125A offers mechanical stability and electrical insulation, ensuring long-term reliability and consistent performance in demanding environments.
• Versatile Design Flexibility: The specific AL value and dimensions allow engineers to precisely design inductors and transformers to meet exact inductance requirements with a controlled number of turns, offering significant flexibility in circuit optimization.

Typical Applications

The KAM080-125A Nanodust Toroid Core is highly versatile and finds application in a wide array of electronic systems requiring efficient magnetic components:

• Switch-Mode Power Supplies (SMPS): Essential for designing highly efficient inductors and transformers in buck, boost, and flyback converters, where its low core losses and high permeability contribute to improved power conversion efficiency and reduced heat generation.
• EMI/RFI Filters: Utilized in common-mode and differential-mode chokes to suppress unwanted electromagnetic interference and radio-frequency interference, ensuring signal integrity and compliance with regulatory standards in sensitive electronic equipment.
• DC-DC Converters: Forms the core of inductors in various DC-DC conversion topologies, facilitating stable voltage regulation and current filtering in automotive, industrial, and consumer electronics.
• Power Factor Correction (PFC) Circuits: Integrated into PFC inductors to improve the power factor of AC-DC power supplies, reducing harmonic distortion and increasing overall system efficiency, particularly in high-power applications.
• Audio Amplifiers and Crossovers: Employed in high-quality audio equipment for designing inductors in power supply filtering and passive crossover networks, where its low distortion characteristics contribute to superior sound reproduction.

In summary, the KAM080-125A from KDM is a high-performance Nanodust Toroid Core offering an optimal blend of magnetic properties, compact size, and reliability. Its advanced material and toroidal design make it an excellent choice for demanding power and signal conditioning applications. This component is readily stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your design and production needs.

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