S2318HC-E8.8-026 HC Core S2318HC-E8.8 26µ

S2318HC-E8.8-026 is a high-performance HC Core manufactured by KDM, a reputable name in passive components. This specific component falls under the Magnetics – Components category and is designed to serve as a crucial element in various inductive applications. HC Cores, often referred to as High Current Cores, are specialized magnetic cores engineered to handle significant DC bias currents without saturating, making them ideal for power inductors, chokes, and transformers. The S2318HC-E8.8 series, to which this part belongs, is known for its robust construction and excellent magnetic properties, ensuring reliable operation in demanding electronic circuits. KDM’s commitment to quality ensures that this HC Core provides consistent performance, contributing to the efficiency and stability of the end application.

Key Specifications

This HC Core boasts several critical attributes that define its performance characteristics:

Series: S2318HC-E8.8 – This designates the specific product family, indicating a standardized design and performance profile within KDM’s offerings. Understanding the series helps in cross-referencing and ensures compatibility within a system design.

Core Material: Si-Fe / Sendust / High Flux – This indicates a composite material, likely a blend of Silicon-Iron, Sendust (an alloy of iron, silicon, and aluminum), and other high-flux materials. Such materials are chosen for their high saturation flux density, low core losses at high frequencies, and excellent DC bias characteristics, which are critical for power applications.

Mounting Type: Through Hole – This specifies that the core is designed for traditional through-hole mounting on a printed circuit board (PCB). This method provides robust mechanical support and reliable electrical connections, often preferred for components that may experience mechanical stress or require significant current handling.

Component Type: HC Core – Reaffirms its primary function as a High Current Core, emphasizing its suitability for applications requiring high DC bias current handling without magnetic saturation.

AL Value (nH/N²): 83 – The AL value, or inductance factor, represents the inductance (in nanohenries) produced per turn squared. An AL value of 83 nH/N² allows engineers to precisely calculate the number of turns required to achieve a desired inductance for a specific winding configuration.

Permeability (µ): 26 – Permeability is a measure of a material’s ability to support the formation of a magnetic field within itself. A permeability of 26 indicates a relatively low but stable permeability, which is characteristic of high-flux materials designed to prevent saturation under high DC bias conditions.

Shape Dimensions (mm): 23.5 x 18.0 x 8.8 x 19 – These dimensions likely refer to the outer diameter, inner diameter, height, and perhaps another critical dimension of the toroid or E-core shape. Precise dimensions are crucial for mechanical fit, winding space, and thermal management within an application.

Effective Area Ae (cm²): 1.004 – The effective cross-sectional area of the core, important for calculating the magnetic flux density and determining the maximum current the core can handle before saturation.

Effective Length le (cm): 3.942 – The effective magnetic path length, used in conjunction with Ae to calculate the core’s reluctance and inductance.

Effective Volume Ve (cm³): 3.958 – The effective volume of the core material, relevant for calculating core losses and thermal dissipation capabilities.

Features and Benefits

• High Saturation Flux Density: The Si-Fe / Sendust / High Flux core material ensures that the S2318HC-E8.8-026 can withstand high DC bias currents without saturating, maintaining stable inductance in power applications.
• Low Core Losses: Optimized material composition minimizes energy dissipation as heat, leading to higher efficiency in power conversion circuits and reduced thermal management requirements.
• Stable Permeability: With a permeability of 26, this HC Core offers consistent magnetic performance across varying operating conditions, ensuring reliable circuit operation.
• Robust Through-Hole Mounting: The through-hole design provides excellent mechanical stability and ensures secure integration onto PCBs, crucial for components in high-vibration or high-power environments.
• Precision Inductance Control: The specified AL value of 83 nH/N² allows engineers to design inductors with precise inductance values by controlling the number of winding turns.

Typical Applications

The S2318HC-E8.8-026 HC Core is highly versatile and finds application in a wide array of power electronics and magnetic component designs:

Power Inductors for DC-DC Converters: Essential in switch-mode power supplies (SMPS) for buck, boost, and buck-boost converters, where it helps store and release energy, smooth current ripples, and maintain stable output voltages under varying load conditions. Its high current handling capability is paramount here.

Output Chokes in Power Supplies: Used at the output stage of power supplies to filter out high-frequency noise and ripple current, ensuring a clean and stable DC output. The core’s ability to resist saturation under load is critical for consistent filtering.

PFC (Power Factor Correction) Inductors: Integral to active PFC circuits in power supplies, this core helps improve the power factor by shaping the input current waveform to be in phase with the input voltage, thereby reducing harmonic distortion and improving overall system efficiency.

EMI/RFI Filters: Employed in common mode or differential mode chokes to suppress electromagnetic interference (EMI) and radio-frequency interference (RFI), preventing noise propagation in sensitive electronic systems and ensuring compliance with regulatory standards.

Energy Storage Inductors: Utilized in various energy storage applications where high current and efficient energy transfer are required, such as in renewable energy systems (solar inverters) or electric vehicle charging infrastructure.

Summary

The S2318HC-E8.8-026 from KDM is a high-quality HC Core designed for demanding power applications. Its advanced core material, stable magnetic properties, and robust construction make it an excellent choice for engineers seeking reliable and efficient magnetic components. This product is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your project needs.

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