The **XFCL6LPA-R15** is a high-performance, low-profile power inductor, typically used in DC-DC converter circuits for mobile devices, laptops, and compact industrial electronics. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. Key Technical Specifications The following table outlines the core electronic parameters for the R15 (0.15µH) variant of this series: | Parameter | Value | Description | | :--- | :--- | :--- | | **Inductance** | 0.15 µH | Nominal inductance measured at 1MHz | | **Tolerance** | ±20% | Standard deviation from nominal value | | **DC Resistance (DCR)** | ~2.5 mΩ (Max) | Internal resistance; lower values improve efficiency | | **Saturation Current ($I_{sat}$)** | ~18 - 22 A | Current at which inductance drops by 30% | | **Heat Rating Current ($I_{rms}$)** | ~14 - 16 A | Current causing a 40°C temperature rise | | **Operating Temperature** | -40°C to +125°C | Safe range including self-heating | --- ### 2. Physical Construction and "LPA" Features The "LPA" designation in the part number usually refers to its **Low Profile** and **Alloy** construction. * **Molded Metal Structure:** Unlike traditional wire-wound inductors with a hollow core, this part uses a metal powder molding technology. This provides a "soft saturation" characteristic, meaning the inductance doesn't crash suddenly when current spikes. * **Shielding:** The molded body acts as a natural magnetic shield, significantly reducing Electromagnetic Interference (EMI) with neighboring components on a dense PCB. * **Footprint:** It typically follows a compact SMD (Surface Mount Device) footprint (e.g., 6.0 x 6.0 mm), designed for automated pick-and-place assembly. --- ### 3. Application Use Cases Because of its high current handling and low DCR, the XFCL6LPA-R15 is commonly found in: 1. **Voltage Regulator Modules (VRMs):** Managing power delivery to CPUs and GPUs. 2. **Point of Load (POL) Converters:** Stepping down voltages on motherboards. 3. **High-Efficiency Power Supplies:** Used in battery-operated devices where heat dissipation must be minimized. --- ### 4. Part Number Breakdown While manufacturer codes vary slightly, the nomenclature usually follows this logic: * **XFCL:** Series Identifier (High Current Molded Inductor). * **6:** Approximate physical size (e.g., 6mm class). * **LPA:** Low Profile / Alloy core material. * **R15:** Inductance value (R15 = 0.15 microhenries). ---