The **S-413-R** is a specific electronic component typically categorized as a **Surface Mount (SMT) or Power Inductor**, often found in automotive and industrial power management circuits. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. Technical Specifications The S-413-R is generally associated with high-current power inductor series. Its performance parameters are crucial for voltage regulation. | Feature | Specification | | :--- | :--- | | **Component Type** | Fixed Power Inductor | | **Inductance** | Typically 4.1 µH to 4.3 µH (Series dependent) | | **Tolerance** | ±20% | | **Current Rating (Isat)** | High saturation current (typically 3A - 8A) | | **Mounting Type** | Surface Mount Device (SMD/SMT) | | **Shielding** | Magnetically Shielded (reduces EMI) | --- ### 2. Key Electronic Functions In a circuit, the S-413-R performs several critical roles: * **Energy Storage:** It stores energy in its magnetic field during the "on" cycle of a switching regulator. * **Filtering:** Acts as a low-pass filter to smooth out ripple current in DC-DC converters. * **EMI Suppression:** Because it is usually shielded, it prevents electromagnetic interference from affecting nearby sensitive components. * **Impedance:** Provides high impedance to AC signals while allowing DC current to pass with minimal resistance (DCR). --- ### 3. Physical Construction The "R" suffix often denotes **RoHS Compliance** (Lead-free) or a specific **Reel packaging** standard. * **Core Material:** Usually Ferrite or Metal Composite. * **Terminations:** Solder-plated copper or silver-nickel-tin. * **Footprint:** Designed for automated pick-and-place assembly lines. --- ### 4. Common Applications You will find this part in the following environments: 1. **DC-DC Converters:** Buck, Boost, or Sepic converters. 2. **Automotive Electronics:** Powering infotainment or ADAS systems. 3. **Laptops/Tablets:** Voltage Regulator Modules (VRM) for CPUs. 4. **LED Drivers:** Maintaining constant current for high-brightness LEDs. ---