The **SC2220-R24** typically refers to a high-current, surface-mount (SMD) power inductor, often used in DC-DC converter applications. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Overview The SC2220-R24 belongs to the **2220 (imperial)** or **5650 (metric)** size family. It is designed to handle high current while maintaining a compact footprint, primarily used for energy storage and filtering in power supply circuits. ### 2. Key Technical Specifications While specific values can vary slightly by manufacturer (such as Sumida or Coilcraft), the "R24" suffix generally indicates the inductance value. | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance** | 0.24 µH (Microhenries) | | **Tolerance** | ±20% (Typical) | | **Case Size** | 2220 (5.6mm x 5.0mm) | | **Operating Temperature** | -40°C to +125°C | | **Material** | Ferrite Core with Copper Winding | | **Mounting Type** | Surface Mount (SMD/SMT) | --- ### 3. Core Electronic Properties * **Low DCR (DC Resistance):** Because the inductance is very low (0.24 µH), these parts are engineered with thick copper wire to minimize resistance, leading to higher efficiency and less heat generation. * **Saturation Current ($I_{sat}$):** These components are designed to handle high peak currents before the magnetic core saturates and the inductance drops. * **High Self-Resonant Frequency (SRF):** Due to the low inductance value, the SC2220-R24 can operate effectively at high switching frequencies (often in the MHz range). --- ### 4. Application Areas These inductors are commonly found in the following electronic modules: 1. **Voltage Regulator Modules (VRMs):** Found on motherboards and GPU power phases. 2. **Point of Load (POL) Converters:** Used to step down voltages for sensitive ICs. 3. **Battery Powered Devices:** High efficiency is required to extend battery life. 4. **EMI Filtering:** Used in input/output stages to reduce high-frequency noise. --- ### 5. Part Number Breakdown Typically, the nomenclature follows this logic: * **SC:** Series designation (Standard Chip/Shielded Core). * **2220:** Physical dimensions (0.22 x 0.20 inches). * **R24:** The value code. The "R" acts as a decimal point ($0.24$).