Based on your query, the **1AAN-R** is a specific part number typically associated with **Power Inductors**, most notably manufactured by companies like **Bourns** or **Coilcraft** (often part of a larger series like the SRP or XAL series). Below is a detailed breakdown of the electronic specifications and characteristics for this component. --- ## 1. Component Overview The 1AAN-R is generally a high-current, shielded power inductor designed for high-frequency DC/DC converters and power supply modules. ### Key Specifications Table | Feature | Typical Specification | | :--- | :--- | | **Component Type** | Fixed Power Inductor | | **Inductance Value** | Usually 1.0 µH (indicated by '1') | | **Tolerance** | ±20% (standard for R-series) | | **Shielding** | Shielded (Magnetic) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Construction** | Metal Alloy Powder Core | --- ## 2. Technical Characteristics ### A. Material Composition These parts utilize a **Metal Alloy Powder Core**. This design provides several advantages over traditional ferrite cores: * **Soft Saturation:** The inductance drops gradually as current increases, rather than a sharp drop-off. * **Low Noise:** The molded construction minimizes "buzzing" or acoustic noise. ### B. High Current Performance The "R" suffix often denotes **RoHS compliance** and high-reliability ratings. These inductors are capable of handling high saturation currents (Isat) and high heating currents (Irms) despite their small footprint. --- ## 3. Common Applications The 1AAN-R series is widely used in modern electronics where space is limited but power demands are high: 1. **Voltage Regulator Modules (VRMs):** Found on motherboards and graphics cards. 2. **DC/DC Converters:** Used in point-of-load (POL) power supplies. 3. **Portable Electronics:** Smartphones, tablets, and laptops. 4. **Battery Powered Devices:** High efficiency ensures longer battery life. --- ## 4. Typical Footprint Example *Note: Dimensions vary by specific series (e.g., 4020, 7030).* ```text [ Top View ] ___________________ | | | (1AAN) | <-- Marking | -R | |___________________| [ Side View ] ___________________ | | <-- Low profile height |___________________| ``` ---