The **MEPA-14M3-R** is a high-performance, shielded power inductor typically manufactured by **ITG Electronics**. It is designed for high-current applications where stability, efficiency, and low electromagnetic interference (EMI) are critical. --- ## 1. Key Technical Specifications The following table outlines the core electronic parameters of the MEPA-14M3-R series: | Parameter | Specification | | :--- | :--- | | **Inductance Range** | Typically 0.22µH to 2.2µH (varies by sub-model) | | **Tolerance** | ±20% (Standard) | | **Core Material** | Alloy Powder (High Saturation) | | **Operating Temperature** | -55°C to +125°C | | **Construction** | Molded Shielded Structure | | **Termination** | Lead-free (RoHS Compliant) | --- ## 2. Core Electronic Features ### High Saturation Current ($I_{sat}$) The "MEPA" series utilizes a proprietary metal alloy powder core. This allows the inductor to handle high peak currents without the inductance dropping sharply (a phenomenon known as "hard saturation"). This is vital for maintaining stability during power spikes. ### Low DC Resistance (DCR) The internal windings are designed to minimize copper loss. A low DCR ensures that the component generates minimal heat, increasing the overall efficiency of the Power Management Integrated Circuit (PMIC) it is paired with. ### Magnetic Shielding The component is molded, meaning the wire is encased in the magnetic material. This provides: * **Reduced EMI:** Minimizes the leakage of magnetic flux that could interfere with nearby sensitive components. * **Acoustic Quietness:** Reduces the "coil whine" often heard in high-frequency switching power supplies. --- ## 3. Typical Applications The MEPA-14M3-R is commonly found in high-density power modules including: 1. **Voltage Regulator Modules (VRMs):** Used in servers and high-end desktop motherboards. 2. **DC-DC Converters:** Point-of-Load (POL) converters for telecommunications. 3. **Graphic Cards:** Providing stable current to high-wattage GPUs. 4. **Laptops/Tablets:** Where low profile and high efficiency are required for battery longevity. --- ## 4. Footprint and Packaging The "14M3" designation usually refers to the physical dimensions (approximately 14mm x 13mm footprint). It is an **SMD (Surface Mount Device)**, designed for automated "pick and place" assembly lines and reflow soldering.