The **XFHCL6MA-R82M** is a high-current, surface-mount (SMD) power inductor commonly used in DC-DC converter applications. It belongs to a category of "molded" inductors known for their stability and low electromagnetic interference (EMI). --- ### 1. Technical Specifications The part number follows a specific nomenclature used by manufacturers (typically XFMRS or similar electronic component vendors). Below are the core technical parameters: | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 0.82 µH | | **Tolerance** | ±20% (indicated by 'M') | | **DCR (Direct Current Resistance)** | Low (typically < 5 mΩ, specific to size) | | **Saturation Current (Isat)** | High (typically 15A - 25A depending on thermal limits) | | **Package Type** | SMD (Surface Mount Device) | | **Construction** | Metal Alloy / Magnetic Shielded | --- ### 2. Key Features * **Magnetic Shielding:** The "molded" construction uses a metallic iron powder core that surrounds the coil. This minimizes leakage flux and reduces interference with nearby components on the PCB. * **High Saturation:** Unlike traditional ferrite inductors, these parts exhibit a "soft saturation" curve, meaning they don't lose inductance abruptly when current spikes. * **Low DCR:** The use of heavy-gauge flat or round copper wire inside ensures minimal power loss through heat (Ohmic loss). --- ### 3. Application Use Cases This specific inductance value (0.82 µH) is frequently found in high-frequency switching power supplies: 1. **Voltage Regulator Modules (VRMs):** Used in CPU/GPU power delivery on motherboards. 2. **Point of Load (POL) Converters:** Converting 12V or 5V rails down to 1.xV for digital ICs. 3. **Battery Powered Devices:** High efficiency makes them ideal for tablets and laptops. 4. **Automotive Electronics:** Infotainment systems and ADAS sensors often require these shielded parts to pass EMC testing. --- ### 4. Equivalent Series & Cross-Reference If the XFHCL series is unavailable, designers often look at these industry-standard equivalents: * **Vishay:** IHLP Series (e.g., IHLP-2525) * **Bourns:** SRP Series * **TDK:** SPM Series ---