## CTC0F-R82M Electronic Component Overview The **CTC0F-R82M** is a specific surface-mount technology (SMT) electronic component, primarily categorized as a **Fixed Inductor** (Power Inductor). These are typically used in power management circuits to store energy and filter noise. --- ### Technical Specifications Below are the typical parameters associated with this part number: | Parameter | Value / Specification | | :--- | :--- | | **Component Type** | Fixed Inductor (Unshielded/Shielded Chip) | | **Inductance** | 0.82 µH (Microhenries) | | **Tolerance** | ±20% (indicated by the "M" suffix) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Material** | Usually Ferrite Core | | **Packaging** | Tape and Reel (for automated assembly) | --- ### Part Number Breakdown The alphanumeric code provides specific details about the component's construction: 1. **CTC0F**: The series designation. This usually identifies the manufacturer's specific product line (often associated with **Central Technologies**). 2. **R82**: The Inductance value. The "R" acts as a decimal point. * $R82 = 0.82$ µH. 3. **M**: The Tolerance code. * $M = ±20\%$. * (Common alternatives: J = ±5%, K = ±10%). --- ### Key Applications Inductors of this value (0.82 µH) are frequently found in high-frequency circuits. Common use cases include: * **DC-DC Converters:** Helping regulate voltage in smartphones, tablets, and laptops. * **Voltage Regulator Modules (VRM):** Used on motherboards to provide stable power to CPUs. * **Noise Filtering:** Suppressing electromagnetic interference (EMI) in power lines. * **Decoupling:** Preventing high-frequency noise from affecting sensitive integrated circuits. --- ### Selection Considerations When replacing or designing with the CTC0F-R82M, you must also consider physical and thermal constraints: * **DCR (DC Resistance):** Lower resistance is better for efficiency and reducing heat. * **Saturation Current ($I_{sat}$):** The current level where the inductance drops by a specific percentage. * **RMS Current ($I_{rms}$):** The maximum continuous current the part can handle without overheating. * **Footprint:** Ensure the physical dimensions (e.g., 0805, 1206, or specific power inductor sizes) match your PCB layout.