The **MP1222-7L-RV** is a high-performance, shielded power inductor specifically designed for use in high-frequency DC-DC converters, voltage regulator modules (VRMs), and point-of-load (PoL) applications. --- ### 1. Technical Specifications Below are the typical electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 2.2 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | ~25.0 A (Depends on temperature rise) | | **Saturation Current (Isat)** | ~32.0 A (Typical drop in inductance) | | **DC Resistance (DCR)** | ~1.65 mΩ | | **Operating Temperature** | -40°C to +125°C | | **Package/Case** | Shielded Surface Mount (SMD) | --- ### 2. Key Features and Materials The "MP" series generally utilizes a **metal powder core** technology. This construction provides several advantages for modern electronics: * **Soft Saturation:** Unlike ferrite cores that drop inductance sharply when current limits are reached, the metal alloy core provides a gradual "soft" saturation curve. * **High Current Density:** The flat-wire or specialized winding techniques allow for extremely low DCR, minimizing heat loss. * **Magnetic Shielding:** The molded construction reduces Electromagnetic Interference (EMI), protecting nearby sensitive components from magnetic leakage. * **Thermal Stability:** Designed to maintain stable inductance across a wide range of operating temperatures. --- ### 3. Application Use Cases This specific inductor is found in circuits requiring high efficiency and small footprints: * **Server & Data Centers:** Used in high-current power stages for CPUs and GPUs. * **Industrial Power Supplies:** Suitable for rugged environments due to its wide temperature range. * **Consumer Electronics:** High-end laptops and gaming consoles where board space is limited. --- ### 4. Part Number Breakdown (Typical) While naming conventions vary by manufacturer, the code usually follows this logic: * **MP:** Series (Metal Powder / Molded Power). * **1222:** Dimensional size (often 12mm x 12mm area). * **7L:** Height or internal revision code. * **RV:** RoHS compliance / Reel packaging / Performance variation.