The **MP2A-6R8-R** is a high-performance, shielded power inductor designed primarily for DC-DC converter applications. It belongs to the **MPI (Molded Power Inductor)** series manufactured by **Eaton (formerly Cooper Bussmann)**. ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Inductance** | 6.8 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | 93 mΩ (Typical) / 112 mΩ (Maximum) | | **Rated Current ($I_{rms}$)** | 2.5 Amperes | | **Saturation Current ($I_{sat}$)** | 3.5 Amperes | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | 2.8mm x 2.4mm x 1.0mm (SMD) | --- ### 2. Core Features & Construction * **Molded Construction:** The inductor uses a metal powder core technology. The wire coil is placed inside a mold, and magnetic powder is pressed around it. This creates a solid block that is rugged and resistant to mechanical shock. * **Magnetically Shielded:** Because the magnetic material surrounds the coil, it minimizes Electromagnetic Interference (EMI), making it ideal for densely packed circuit boards. * **Soft Saturation:** Unlike ferrite inductors that lose inductance sharply when current increases, this molded core has "soft" saturation characteristics, meaning it maintains more inductance at peak current loads. * **Low Profile:** With a height of only 1.0mm, it is designed for ultra-thin electronics like smartphones and tablets. --- ### 3. Common Applications The MP2A-6R8-R is typically found in power management stages for: 1. **Mobile Devices:** Smartphones, tablets, and handheld consoles. 2. **Point-of-Load (POL) Converters:** Providing stable voltage to CPUs or FPGAs. 3. **Battery Powered Systems:** Where high efficiency and small footprint are critical. 4. **DC-DC Buck/Boost Converters:** Specifically for high-frequency switching environments. --- ### 4. Part Number Breakdown The part number follows a specific nomenclature: * **MP2A:** Series name (Molded Power Inductor, size 2A). * **6R8:** Inductance value (6.8 microhenries). * **-R:** RoHS compliant / Green material.