The **XFHCL4LP-R15M** is a high-performance, surface-mount (SMD) power inductor commonly used in DC-DC converter applications. It is designed for high-frequency environments where high efficiency and low power loss are critical. --- ### 1. Technical Specifications The following table summarizes the core electronic parameters of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.15 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | ~0.55 mΩ (Max) | | **Saturation Current (Isat)** | ~40A - 55A (Depends on temp rise) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | Low Profile SMD (High Current) | --- ### 2. Core Features * **Low Profile Design:** The "LP" in the part number signifies a low-profile construction, making it ideal for thin electronic devices like tablets, ultrabooks, and high-density power modules. * **High Saturation Current:** It is engineered to handle high peak currents without the magnetic core "saturating," which ensures the inductance remains stable even under heavy loads. * **Composite Core Material:** Usually manufactured with a metal alloy powder core, which provides better thermal stability and lower acoustic noise compared to traditional ferrite cores. * **Shielded Construction:** The magnetic shielding reduces Electromagnetic Interference (EMI), protecting nearby sensitive components on the PCB. --- ### 3. Common Applications This inductor is typically found in the following electronic circuits: 1. **Voltage Regulator Modules (VRMs):** Used in CPU and GPU power supplies on motherboards. 2. **Point of Load (POL) Converters:** For stepping down voltages in telecommunications and networking equipment. 3. **Battery Powered Devices:** High-efficiency power management for mobile hardware. --- ### 4. Part Number Breakdown (Typical) While manufacturers vary slightly, the nomenclature usually follows this logic: * **XF:** Manufacturer series (often XFMRS or similar). * **HCL:** High Current Inductor series. * **4LP:** Form factor/Size (Low Profile). * **R15:** Inductance value (R15 = 0.15 microhenries). * **M:** Tolerance (M = ±20%).