The **MPIA4015V2-R56-R** is a high-performance, automotive-grade power inductor manufactured by **Eaton** (formerly Coiltronics). It belongs to the MPIA4015V2 series, which is characterized by its miniature footprint, high current handling, and ruggedized construction. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the physical and electrical characteristics of the component: | Code Segment | Meaning | Specification | | :--- | :--- | :--- | | **MPIA** | Series Name | Miniature Power Inductor, Automotive Grade | | **4015** | Dimensions | 4.0mm (Length) x 4.0mm (Width) x 1.5mm (Height) | | **V2** | Version | Generation 2 (Improved materials/efficiency) | | **R56** | Inductance Value | 0.56 microhenries (µH) | | **-R** | RoHS Compliance | Lead-free and RoHS compliant | --- ### 2. Key Electrical Specifications Below are the typical operating parameters for the 0.56µH variant: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.56 µH | | **Tolerance** | ±20% | | **Rated Current ($I_{rms}$)** | ~6.5 Amps (Current causing 40°C temp rise) | | **Saturation Current ($I_{sat}$)** | ~10.0 Amps (Current causing 30% drop in inductance) | | **DC Resistance (DCR)** | ~13.5 mΩ (Typical) | | **Operating Temp Range** | -55°C to +125°C | --- ### 3. Core Technologies and Features * **Molded Construction:** The inductor uses a metal powder core technology. This "pressed" design minimizes acoustic noise (buzzing) and provides a "soft" saturation characteristic, meaning the inductance drops gradually rather than abruptly when current limits are exceeded. * **AEC-Q200 Qualified:** This part is tested for high-reliability automotive standards, making it resistant to mechanical shock, vibration, and extreme thermal cycling. * **Magnetic Shielding:** The molded body acts as a natural shield, significantly reducing Electromagnetic Interference (EMI) with neighboring components on the PCB. * **Low Profile:** At only 1.5mm tall, it is ideal for thin electronic assemblies. --- ### 4. Common Applications Due to its high current density and automotive rating, it is frequently used in: 1. **Automotive Systems:** Infotainment, ADAS (Advanced Driver Assistance Systems), and LED lighting. 2. **DC-DC Converters:** Specifically Point-of-Load (POL) converters for CPUs and GPUs. 3. **Battery Powered Devices:** Handheld medical equipment or ruggedized industrial sensors. 4. **Distributed Power Systems:** Where space is limited but high efficiency is required. ---