KSF520-090A Si-Fe Toroid Core 132.54×78.59×20.32 90µ

KSF520-090A is a high-performance Si-Fe Toroid Core manufactured by KDM, a reputable name in passive components. This magnetic core is specifically designed to provide excellent magnetic properties for a wide range of power electronics applications. Toroidal cores, like the KSF520-090A, are highly valued for their self-shielding properties, efficient magnetic flux containment, and compact form factor, making them ideal for inductors, transformers, and chokes where high efficiency and minimal electromagnetic interference (EMI) are critical. The silicon-iron (Si-Fe) material composition ensures a robust and reliable performance, particularly in applications requiring stable inductance over varying temperatures and current levels.

Key Specifications

The KSF520-090A boasts several critical specifications that define its performance and suitability for various designs:

• Series: Si-Fe – This indicates the core material composition, silicon-iron, known for its high saturation flux density and good permeability, making it suitable for power applications.
• Weight (g): 46.612 – The relatively low weight for its size contributes to lighter end products, an advantage in many modern electronic designs.
• Core Material: Si-Fe – As mentioned, silicon-iron offers a balance of magnetic properties, including high saturation and good temperature stability, crucial for reliable operation in power circuits.
• Mounting Type: Through Hole – This specifies that the core is typically mounted by winding wires through its center hole, a common and robust method for toroidal components.
• Component Type: Magnetic Core (Toroid) – Clearly identifies it as a toroidal magnetic core, emphasizing its closed-loop magnetic path which minimizes leakage flux.
• AL Value (nH/N²): 187 – The inductance factor (AL value) is a critical parameter, indicating the inductance per turn squared. An AL value of 187 nH/N² means that for a given number of turns, a specific inductance can be precisely calculated, essential for inductor and transformer design.
• Permeability (µ): 90 – Permeability is a measure of how easily a material can support the formation of a magnetic field within itself. A permeability of 90 indicates a good balance for power applications, allowing for effective energy storage and transfer without saturating too easily.
• Effective Area Ae (cm²): 5.347 – The effective cross-sectional area of the core, crucial for calculating flux density and ensuring the core does not saturate under expected operating currents.
• Effective Length le (cm): 32.428 – The effective magnetic path length, used in conjunction with Ae to determine the core’s magnetic properties and inductance.
• Dimensions OD×ID×HT (mm): 132.54×78.59×20.32 – These are the precise outer diameter, inner diameter, and height of the core, vital for mechanical design and PCB layout.
• Effective Volume Ve (cm³): 173.400 – The effective magnetic volume, which relates to the core’s energy storage capability and power handling capacity.
• Dimensions After Coating (mm): 133.96×77.04×21.72 – These dimensions account for any protective coating applied to the core, which is important for final assembly and ensuring proper fit within enclosures or alongside other components.

Features and Benefits

• High Saturation Flux Density: The Si-Fe material allows for higher energy storage and power transfer capabilities before saturation, making it suitable for demanding power applications.
• Excellent Magnetic Shielding: The toroidal shape inherently provides superior magnetic flux containment, minimizing electromagnetic interference (EMI) with adjacent components and reducing external noise.
• Compact and Efficient Design: Its optimized dimensions and material properties enable the creation of smaller, lighter, and more efficient inductors and transformers, saving space and reducing overall system weight.
• Stable Performance: The KSF520-090A offers consistent magnetic properties over a wide range of operating temperatures and current levels, ensuring reliable and predictable circuit behavior.
• Cost-Effective Solution: Silicon-iron cores provide a good balance of performance and cost, offering an economical choice for various power conversion and filtering applications without compromising quality.

Typical Applications

The KSF520-090A Si-Fe Toroid Core is highly versatile and finds application in numerous electronic systems:

• Power Supply Units (PSUs): Used extensively in switch-mode power supplies (SMPS) as output inductors, PFC (Power Factor Correction) chokes, and input filters to smooth current, store energy, and reduce ripple.
• Inverters and Converters: Essential components in DC-DC converters and DC-AC inverters for renewable energy systems (solar, wind), electric vehicles, and industrial power conversion, where high efficiency and reliable energy transfer are paramount.
• Motor Control Systems: Employed in motor drive circuits as filter inductors to reduce current harmonics, improve power quality, and protect sensitive electronics from voltage spikes, leading to smoother motor operation.
• Audio Amplifiers: Utilized in high-fidelity audio equipment for power supply filtering and output inductors, ensuring clean power delivery and minimizing distortion in audio signals.
• Industrial Automation Equipment: Found in various industrial control systems, robotics, and automation machinery where robust and efficient magnetic components are required for power conditioning and signal integrity.

In summary, the KSF520-090A from KDM is a robust and efficient Si-Fe Toroid Core, offering excellent magnetic properties for a wide array of power electronics applications. Its precise specifications and reliable performance make it an ideal choice for engineers and designers seeking high-quality magnetic components. This product is readily stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt delivery for your project needs.

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