The **MPIA4015V2-R47-R** is a high-performance, automotive-grade power inductor manufactured by **Eaton** (formerly Coiltronics). It is part of the MPIA4015V2 series, designed specifically for high-frequency DC-DC converters where space is limited and reliability is critical. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify its key characteristics: | Code Segment | Meaning | | :--- | :--- | | **MPIA** | Series Name (Metal Powder Inductor, Automotive Grade) | | **4015** | Case Size (Approx. 4.0mm x 4.0mm x 1.5mm) | | **V2** | Version 2 (Improved materials/design) | | **R47** | Inductance Value (0.47 µH) | | **R** | RoHS Compliant | --- ### 2. Technical Specifications Below are the electrical and physical parameters for this specific component: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.47 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR) Typ.** | 13.5 mΩ | | **DC Resistance (DCR) Max.** | 16.2 mΩ | | **Rated Current ($I_{rms}$)** | 7.5 A (based on temperature rise) | | **Saturation Current ($I_{sat}$)** | 9.0 A (based on inductance drop) | | **Operating Temperature** | -40°C to +125°C | | **Frequency Range** | Up to 5 MHz | --- ### 3. Key Features * **AEC-Q200 Qualified:** Rigorously tested for automotive environments (vibration, thermal shock, and moisture resistance). * **Magnetically Shielded:** The metal powder construction minimizes Electromagnetic Interference (EMI), which is vital for sensitive automotive electronics. * **Low Core Loss:** Optimized for high-frequency switching, reducing heat and improving efficiency. * **High Current Density:** Its compact 4015 footprint handles significantly higher current compared to standard ferrite inductors of the same size. --- ### 4. Common Applications This inductor is typically found in: 1. **Automotive Systems:** Infotainment, ADAS (Advanced Driver Assistance Systems), and Engine Control Units (ECUs). 2. **Point-of-Load (POL):** High-efficiency DC-DC converters for FPGAs and CPUs. 3. **Battery Powered Devices:** Handheld medical or industrial equipment requiring small footprints. --- ### 5. Land Pattern (Footprint) For PCB design, the approximate dimensions in millimeters are: ```markdown Length: 4.4 mm (Max) Width: 4.1 mm (Max) Height: 1.5 mm (Max) ``` ---