The **IA0204-R82KA** is a specific type of electronic component, primarily categorized as a **Fixed Inductor** (specifically an RF or Molded Choke). These components are designed to store energy in a magnetic field when electric current flows through them. Below is a detailed breakdown of its specifications and electronic properties. --- ## 1. Technical Specifications | Parameter | Specification | Notes | | :--- | :--- | :--- | | **Inductance** | 0.82 µH (Microhenries) | The "R82" in the part number indicates 0.82. | | **Tolerance** | ±10% | Indicated by the "K" in the suffix. | | **Mounting Type** | Through-Hole | Axial leaded design. | | **Construction** | Molded / Shielded | Protects the internal coil from environmental factors. | | **Core Material** | Phenolic or Ferrite | Depending on the specific frequency optimization. | --- ## 2. Part Number Breakdown Understanding the nomenclature helps in identifying the part's characteristics: * **IA**: Typically denotes the series or manufacturer's product line (Commonly associated with brands like **Wilco** or generic RF choke series). * **0204**: Refers to the physical dimensions/size (e.g., 0.2 inches by 0.4 inches). * **R82**: The numerical value. "R" acts as a decimal point, resulting in **0.82**. * **K**: The tolerance code (K = ±10%, J = ±5%, M = ±20%). * **A**: Usually refers to packaging (e.g., Ammo pack or Axial). --- ## 3. Key Electronic Functions The IA0204-R82KA performs several critical roles in a circuit: ### A. RF Filtering Because it is an RF (Radio Frequency) inductor, it acts as a low-pass filter. It allows DC and low-frequency signals to pass through while blocking high-frequency noise or interference. ### B. Impedance Matching It is used in antenna circuits or signal processing to match the impedance between different stages of a circuit, ensuring maximum power transfer and minimal signal reflection. ### C. Energy Storage Like all inductors, it stores energy in a magnetic field. In power-related applications, it helps smooth out current ripples. --- ## 4. Typical Applications * **Communication Equipment:** Used in radios, transceivers, and walkie-talkies. * **Signal Processing:** Found in filters for audio and video equipment. * **Power Supplies:** Used as a choke to eliminate high-frequency switching noise. * **Test & Measurement:** Integrated into oscillating circuits. ---