The **AC10-R22M-RC** is an electronic component belonging to the **fixed inductor** category, specifically a surface-mount power inductor. These components are designed to store energy in a magnetic field and are critical for filtering and voltage regulation in electronic circuits. --- ## Technical Specifications | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.22 µH (Microhenries) | | **Tolerance** | ±20% (indicated by the 'M' suffix) | | **Inductor Type** | Power / SMD (Surface Mount Device) | | **Current Rating (Isat)** | High Current (Typically > 5A, varies by manufacturer series) | | **Shielding** | Unshielded or Semi-shielded (depending on specific sub-series) | | **RoHS Status** | Compliant (indicated by the 'RC' suffix) | --- ### Key Features and Construction 1. **Low Inductance Value (0.22 µH):** This low value is typical for high-frequency switching power supplies. It allows for rapid energy transfer but requires high switching frequencies (MHz range). 2. **M-Suffix (Tolerance):** The "M" stands for ±20% tolerance, which is standard for power inductors used in power management where exact precision is less critical than current-handling capability. 3. **RC-Suffix (RoHS Compliant):** This indicates that the component is lead-free and meets environmental safety standards. 4. **SMD Packaging:** Designed for automated pick-and-place assembly on Printed Circuit Boards (PCBs). --- ### Common Applications Inductors like the AC10-R22M-RC are primarily used in **DC-DC Converter** circuits. Specific roles include: * **Buck Converters:** Reducing voltage (e.g., from 12V to 1.2V for a CPU). * **Voltage Regulator Modules (VRMs):** Found on motherboards and graphics cards to provide stable power. * **Noise Filtering:** Acting as a low-pass filter to block high-frequency noise while allowing DC current to pass. * **Battery Powered Devices:** Used in smartphones and tablets due to the compact SMD form factor. --- ### Equivalent or Similar Series This part number format is often associated with manufacturers like **Allied Components International**. When looking for replacements, ensure the footprint (physical dimensions) and the **DCR** (DC Resistance) match, as high resistance will lead to overheating at high currents.