The **AIAS-02-R82K** is a specific type of fixed inductor, typically used in power management and signal filtering applications. It is part of the **AIAS-02 series** manufactured by Abracon. --- ### 1. Technical Specifications The part number "R82K" encodes the primary electrical characteristics of the component. | Parameter | Value | Details | | :--- | :--- | :--- | | **Inductance** | 0.82 µH | The "R" acts as a decimal point. | | **Tolerance** | ±10% | Indicated by the "K" suffix. | | **Mounting Type** | Through-Hole | Axial leaded construction. | | **Core Material** | Ferrite | High permeability material for efficiency. | | **Current Rating** | ~1.5A to 3A | (Approximate, varies by specific revision). | --- ### 2. Component Structure The AIAS-02 series is characterized by its **Axial Leaded** design, meaning the leads come out of opposite ends of the cylindrical body, similar to a standard resistor. * **Coating:** Usually encapsulated in a flame-retardant epoxy resin or shrink tube to protect the wire windings from moisture and physical damage. * **Winding:** Copper wire wound around a ferrite rod core. * **Dimensions:** Typically small (approx. 4mm diameter x 10mm length), making it suitable for compact PCB layouts where surface mount (SMD) is not required. --- ### 3. Key Functions & Applications Inductors like the AIAS-02-R82K serve three primary roles in electronic circuits: #### A. Filtering (Noise Suppression) It acts as a low-pass filter, allowing DC current to pass through while blocking high-frequency electromagnetic interference (EMI) or radio frequency interference (RFI). #### B. Energy Storage In DC-DC converters, the inductor stores energy in its magnetic field during the "on" cycle and releases it during the "off" cycle to maintain a steady voltage output. #### C. Common Use Cases: * Switching Power Supplies (SMPS). * Audio equipment for signal decoupling. * Automotive electronics. * Telecommunication devices. --- ### 4. Alternatives and Equivalents If the AIAS-02-R82K is unavailable, engineers typically look for axial inductors with the following matching criteria: 1. **Inductance:** 0.82 µH. 2. **DC Resistance (DCR):** Must be equal to or lower than the original to prevent overheating. 3. **Saturation Current:** Must be equal to or higher than the peak circuit current. ---