The **MAH22FAG-R** is a high-performance, shielded power inductor typically manufactured by companies like **Taiyo Yuden** or similar electronic component specialists. These components are critical in modern power management circuits for managing current flow and filtering noise. --- ### 1. Technical Specifications Inductors in the MAH series are designed for compact spaces with high current demands. | Parameter | Typical Value / Range | |:---|:---| | **Inductance** | 2.2 µH (Microhenries) | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | Low (Typically < 50 mΩ) | | **Saturation Current ($I_{sat}$)** | High (Optimized for power rails) | | **Operating Temperature** | -40°C to +125°C | | **Shielding** | Magnetic Resin / Shielded | --- ### 2. Key Electronic Features #### A. Magnetic Shielding The "FAG" designation usually implies a specific construction method where the coil is encapsulated in a magnetic resin. This reduces **Electromagnetic Interference (EMI)**, ensuring that the magnetic field generated by the inductor does not interfere with nearby sensitive components like CPUs or RF modules. #### B. Soft Saturation Characteristics Unlike traditional ferrite inductors that lose inductance sharply when current increases, these parts are engineered for **soft saturation**. This means the inductance drops gradually, providing more stability during peak power demands. #### C. Metal Core Technology These parts often utilize a metal powder core. This allows for: * Higher current handling in a smaller physical footprint. * Lower DC resistance, which reduces heat generation and increases battery life in portable devices. --- ### 3. Common Applications Due to its 2.2µH rating and compact size, the MAH22FAG-R is commonly found in: * **DC-DC Converters:** Specifically "Buck" (step-down) converters. * **Smartphones/Tablets:** Powering the core rails of mobile processors. * **Wearable Tech:** Where height restrictions and efficiency are critical. * **SSD Storage:** Managing power delivery to NAND flash and controllers. --- ### 4. Part Number Breakdown (Generic) While manufacturers vary slightly, the nomenclature usually follows this logic: * **MAH:** Series identifier (Metal Alloy High-performance). * **22:** Inductance value (2.2 µH). * **FAG:** Material/Case size code. * **R:** Packaging (usually refers to Tape & Reel).