KM065-125A MPP Toroid Core 16.50×10.20×6.35 125µ

KM065-125A is a high-performance Molybdenum Permalloy Powder (MPP) toroid core manufactured by KDM, a reputable name in passive components. This magnetic core is specifically designed for applications requiring stable inductance, low core losses, and excellent DC bias characteristics. Toroid cores, by their very nature, offer superior magnetic shielding and efficient energy storage due to their closed-loop magnetic path, making them ideal for a wide range of power electronics and signal processing circuits. The MPP material composition provides a unique combination of high saturation flux density and low hysteresis losses, ensuring reliable operation across varying frequencies and power levels.

Key Specifications

The KM065-125A core boasts several critical specifications that define its performance and suitability for specific applications. The Series designation as ‘MPP’ confirms its Molybdenum Permalloy Powder composition, known for its distributed air gap properties that result in excellent DC bias performance and low core losses. The Weight of 0.713 grams indicates a lightweight component, beneficial for space-constrained designs and overall product weight reduction. The Core Material, MPP, is crucial for achieving high energy storage capability and stable inductance under varying load conditions. The Mounting Type is ‘Through Hole’, implying it’s typically wound with wire and integrated into a PCB or assembly. The Component Type is clearly defined as a ‘Magnetic Core (Toroid)’, highlighting its fundamental function in inductors, transformers, and chokes. The AL Value (nH/N²) of 72 represents the inductance factor, indicating how much inductance is generated per turn squared, which is vital for calculating the required number of turns for a desired inductance. A Permeability (µ) of 125 signifies its ability to concentrate magnetic flux, directly impacting the inductance and efficiency of the wound component. The Effective Area Ae (cm²) of 0.192 and Effective Length le (cm) of 4.110 are geometric parameters used in magnetic calculations to determine flux density and magnetizing force. The Dimensions OD×ID×HT (mm) of 16.50×10.20×6.35 specify the outer diameter, inner diameter, and height, respectively, which are critical for mechanical fit and winding considerations. The Effective Volume Ve (cm³) of 0.789 provides insight into the core’s overall magnetic material volume, influencing its energy storage capacity. Finally, Dimensions After Coating (mm) of 17.40×9.53×7.11 give the final physical size, accounting for any protective or insulating coating, which is important for clearance and assembly.

Features and Benefits

• Excellent DC Bias Characteristics: MPP material allows for stable inductance even with significant DC current flowing, preventing saturation and maintaining performance in power supply applications.
• Low Core Losses: The distributed air gap and material properties of MPP minimize energy dissipation as heat, leading to higher efficiency in inductors and transformers.
• High Saturation Flux Density: Capable of handling higher magnetic flux levels before saturating, enabling smaller component sizes for a given power requirement.
• Stable Inductance Over Temperature: Offers reliable performance across a broad operating temperature range, crucial for industrial and automotive applications.
• Compact Toroidal Form Factor: The toroid shape provides inherent self-shielding, reducing electromagnetic interference (EMI) and improving overall circuit performance.

Typical Applications

The versatility and robust performance of the KM065-125A MPP toroid core make it suitable for a diverse array of electronic applications. In Power Factor Correction (PFC) chokes, it helps improve the power quality of AC-DC converters by reducing harmonic distortion and increasing efficiency. For DC-DC converters, particularly in buck, boost, and flyback topologies, it serves as an energy storage inductor, crucial for voltage regulation and power transfer. Its low loss characteristics are highly beneficial in switching power supplies, where efficiency is paramount, minimizing heat generation and extending component lifespan. The core is also frequently employed in EMI/RFI filters, effectively suppressing unwanted noise and ensuring signal integrity in sensitive electronic equipment. Furthermore, in output chokes for audio amplifiers, it helps smooth the current, reducing ripple and improving sound quality. Its stable inductance under DC bias also makes it an excellent choice for energy storage inductors in renewable energy systems, such as solar inverters, where consistent performance under varying load conditions is critical.

In summary, the KM065-125A MPP Toroid Core from KDM is a high-quality magnetic component offering superior performance for demanding electronic designs. Its specific material properties and precise dimensions ensure optimal functionality in power conversion, filtering, and energy storage applications. 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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