The **MPIA4015V2-1R5-R** is a high-performance, automotive-grade power inductor manufactured by **Eaton (formerly Bussmann)**. It belongs to the MPIA4015V2 series, which is characterized by its miniature size, high current handling capabilities, and rugged construction. ### 1. General Specifications Below are the key technical parameters for this specific part: | Parameter | Specification | | :--- | :--- | | **Inductance** | 1.5 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | 27.5 mΩ (Typical) / 33 mΩ (Max) | | **Isat (Saturation Current)** | 5.8 A (Typical) | | **Irms (Heating Current)** | 4.8 A (Typical) | | **Case Size** | 4015 (4.0mm x 4.0mm x 1.5mm) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Key Features and Construction The MPIA4015V2-1R5-R is engineered for demanding environments where space and reliability are critical. * **Molded Metal Powder Construction:** The inductor uses a composite core material. This design provides "soft saturation" characteristics, meaning the inductance drops gradually as current increases, rather than dropping sharply. * **Magnetically Shielded:** The molded construction naturally shields the component, reducing Electromagnetic Interference (EMI) with neighboring components. * **Automotive Grade:** It is **AEC-Q200 Grade 1 qualified**, making it suitable for automotive applications like infotainment, ADAS, and body electronics. * **Low Profile:** At only 1.5mm in height, it is ideal for thin electronic assemblies. --- ### 3. Application Use Cases This part is typically used in **DC-DC converters** and voltage regulator modules (VRMs). Common applications include: 1. **Automotive Systems:** Instrument clusters, navigation systems, and LED lighting drivers. 2. **Industrial Electronics:** Compact sensors and handheld controllers. 3. **Computing:** High-efficiency power supplies for distributed power systems. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variations: | Segment | Meaning | | :--- | :--- | | **MPIA** | Series Name (Metal Powder Inductor Automotive) | | **4015** | Dimensions (4.7mm x 4.3mm footprint, 1.5mm height) | | **V2** | Version/Revision 2 | | **1R5** | Inductance Value (1.5 µH) | | **-R** | RoHS Compliant | ---