## Overview of the MP2A-8R2-R The **MP2A-8R2-R** is a high-performance, shielded power inductor designed and manufactured by **Eaton (formerly Cooper Bussmann)**. It belongs to the **MPI (Molded Powder Inductor)** series, which is known for its high current density and low core losses. --- ### 1. Technical Specifications The following table outlines the primary electrical and physical characteristics of the component: | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 8.2 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 2.1 A (Typical) | | **Saturation Current (Isat)** | 2.5 A (Typical) | | **DC Resistance (DCR)** | 93 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | SMD (2.7mm x 2.2mm x 1.0mm) | | **Shielding** | Shielded (Molded) | --- ### 2. Key Features and Construction * **Molded Construction:** The part is constructed using a metal powder molding process. This provides a self-shielded structure that minimizes Electromagnetic Interference (EMI) with surrounding components. * **Low Profile:** With a height of only 1.0mm, it is ideal for thin electronic devices like smartphones and tablets. * **High Saturation:** The molded iron powder core allows for a "soft" saturation characteristic, meaning the inductance does not drop abruptly when current exceeds the rated limit. * **Ruggedness:** The design is highly resistant to mechanical shock and vibration. --- ### 3. Applications The MP2A-8R2-R is commonly found in power management circuits where space is a premium and high efficiency is required: 1. **DC-DC Converters:** Used in buck, boost, and buck-boost regulators. 2. **Portable Electronics:** Ideal for mobile phones, handheld gaming consoles, and wearables. 3. **IoT Devices:** Provides power filtering for low-power sensors and communication modules. 4. **Computing:** Voltage regulator modules (VRMs) for ultra-portable laptops and tablets. --- ### 4. Part Number Breakdown Understanding the nomenclature: | Code Segment | Meaning | | :--- | :--- | | **MP2A** | Series name (Molded Powder Inductor, 2A Size) | | **8R2** | Inductance value (8.2 µH) | | **-R** | RoHS compliant |