The **CTIHLP104F-R56M** is a high-current, shielded power inductor typically used in DC-DC converter applications. It belongs to a category of surface-mount (SMD) components designed for high-density power electronics. --- ### 1. Technical Specifications The part number follows a specific nomenclature used by manufacturers (typically Central Technologies or similar brands). | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.56 µH | | **Tolerance** | ±20% (indicated by 'M') | | **Case Size** | 10.0 x 11.5 x 4.0 mm (approx.) | | **DC Resistance (DCR)** | Extremely Low (typically < 2.0 mΩ) | | **Saturation Current ($I_{sat}$)** | High (typically 20A - 30A range) | | **Operating Temperature** | -40°C to +125°C | | **Shielding** | Magnetic Shielded Construction | --- ### 2. Breakdown of the Part Number Decoding the alphanumeric string helps in identifying the component's physical and electrical properties: * **CTIHLP**: Series designation (High Current Low Profile). * **104F**: Refers to the physical dimensions (Case size 104, F-type molding). * **R56**: Represents the inductance value. 'R' acts as a decimal point ($R56 = 0.56$ µH). * **M**: Tolerance code (M = ±20%). --- ### 3. Key Features and Benefits * **Molded Construction:** The inductor is made of a composite iron powder material. This prevents "hard" saturation (where inductance drops instantly) and provides a soft-saturation curve. * **Low EMI:** Because it is magnetically shielded, it minimizes electromagnetic interference with surrounding components on the PCB. * **High Efficiency:** The low DCR (Direct Current Resistance) minimizes power loss as heat, making it ideal for high-efficiency power supplies. --- ### 4. Typical Applications This component is commonly found in circuits requiring high current handling in a small footprint: 1. **Voltage Regulator Modules (VRM):** Used in CPUs and GPUs. 2. **DC/DC Converters:** Point-of-load (POL) power supplies. 3. **Battery Powered Devices:** High-current handheld electronics. 4. **Automotive Electronics:** Infotainment and lighting control systems. --- ### 5. Footprint (Land Pattern) Below is a conceptual representation of the SMD footprint for a 104-sized inductor: ```text L (11.5mm) +----------------+ | [Terminal 1] | | | W (10.0mm) | [Terminal 2] | +----------------+ H (4.0mm max) ```