The **CTFP3-R10N** is a specific model of a **Surface Mount Power Inductor** (SMD), typically manufactured by companies like Central Technologies. These components are designed for high-current applications where space-saving and efficiency are critical. Below is a breakdown of its technical specifications and electronic characteristics. ### 1. Part Number Breakdown The part number follows a specific nomenclature that defines its physical and electrical properties: | Component Segment | Description | | :--- | :--- | | **CTFP3** | Series series designation (High-current, shielded power inductor) | | **R10** | Inductance value (R denotes decimal point: **0.10 µH**) | | **N** | Tolerance (Typically **±30%** for very low inductance values) | --- ### 2. Key Technical Specifications While exact specs can vary slightly by manufacturer, the CTFP3-R10N generally falls into the following performance brackets: | Parameter | Typical Value | | :--- | :--- | | **Inductance** | 0.10 µH (Microhenries) | | **DC Resistance (DCR)** | Extremely Low (approx. 0.5mΩ to 1.5mΩ) | | **Saturation Current (Isat)** | High (typically 30A to 50A+) | | **Operating Temperature** | -40°C to +125°C | | **Construction** | Metal Alloy / Magnetic Shielding | --- ### 3. Electronic Characteristics * **Low DCR:** Because the inductance is very low (0.10 µH), the internal copper winding is short and thick, resulting in minimal Direct Current Resistance. This reduces power loss and heat generation. * **Magnetic Shielding:** These inductors are usually molded with a metallic powder core. This prevents electromagnetic interference (EMI) from affecting surrounding components on the PCB. * **Soft Saturation:** Unlike ferrite core inductors that lose inductance sharply when current limits are exceeded, the alloy cores used in the CTFP series typically exhibit "soft saturation," maintaining better performance under heavy loads. --- ### 4. Common Applications Due to its high current handling and low inductance, the CTFP3-R10N is commonly used in: * **Voltage Regulator Modules (VRMs):** Found in high-end motherboards and GPUs. * **DC-DC Converters:** High-frequency switching power supplies. * **Telecommunications:** Distributed power systems and base stations. --- ### 5. Footprint (SMD Package) The "3" in CTFP3 often refers to a specific physical size (e.g., approximately 10mm x 11mm or similar). Always verify the manufacturer's datasheet for the exact land pattern to ensure proper soldering.