The **SSL0804HC-R68M-S** is a high-current, surface-mount (SMD) power inductor. These components are primarily used for energy storage and filtering in power management circuits. --- ## 1. Technical Specifications | Parameter | Value / Description | | :--- | :--- | | **Component Type** | Power Inductor (Shielded/High Current) | | **Inductance** | 0.68 µH | | **Tolerance** | ±20% (indicated by 'M') | | **Package Size** | 0804 (approx. 10.0 x 10.0 x 4.0 mm) | | **Core Material** | Carbonyl Powder / Magnetic Shielded | | **Mounting Type** | Surface Mount (SMD) | --- ## 2. Part Number Breakdown Understanding the nomenclature helps identify the physical and electrical characteristics: * **SSL**: Series prefix (typically High-Current Power Inductors). * **0804**: Physical dimensions. "08" refers to the width/length class and "04" refers to the height (approx. 4.0mm). * **HC**: Stands for **High Current**, indicating low DC resistance and high saturation levels. * **R68**: The inductance value. "R" acts as a decimal point, meaning **0.68 µH**. * **M**: Tolerance code for **±20%**. * **S**: Often denotes special packaging or lead-free/RoHS compliant termination. --- ## 3. Key Electronic Characteristics ### Magnetic Shielding The "HC" series is usually magnetically shielded. This means the magnetic field is contained within the inductor body, reducing **Electromagnetic Interference (EMI)** with nearby components on the PCB. ### High Saturation Current ($I_{sat}$) Because it uses a composite metal powder core, this inductor can handle high peak currents without the inductance dropping sharply. This is vital for maintaining efficiency in power converters during heavy loads. ### Low DCR (DC Resistance) The internal copper winding is designed to be thick, minimizing power loss due to heat (Joule heating). This makes it ideal for battery-operated devices where efficiency is a priority. --- ## 4. Typical Applications * **DC-DC Converters:** Used in "Buck" (step-down) or "Boost" (step-up) regulators. * **Voltage Regulator Modules (VRM):** Powering CPUs and GPUs in computing hardware. * **Consumer Electronics:** Laptops, tablets, and high-end workstations. * **Industrial Power Supplies:** High-efficiency point-of-load (POL) converters.