The **XFHCL22-R10M** is a high-current, surface-mount (SMD) power inductor commonly used in DC-DC converters and power management modules. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. Key Technical Specifications The model number typically follows a standard industry naming convention for shielded power inductors. | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance** | 0.10 µH (indicated by "R10") | | **Tolerance** | ±20% (indicated by "M") | | **Type** | Shielded Surface Mount Inductor | | **Core Material** | Composite Iron Powder / Alloy | | **DCR (Direct Current Resistance)** | Extremely low (typically < 1.0 mΩ) | | **Saturation Current ($I_{sat}$)** | High (often > 40A depending on size) | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying equivalent parts: * **XF:** Manufacturer prefix (often associated with XFMRS or similar magnetic component vendors). * **HCL:** High Current Low-profile series. * **22:** Physical dimensions (usually relates to the footprint, e.g., 2.2mm height or a specific case size). * **R10:** The value of inductance. $R$ acts as a decimal point. $R10 = 0.10 \mu H$. * **M:** Tolerance code. $M = \pm 20\%$. --- ### 3. Core Features and Applications #### Features * **Magnetic Shielding:** The part is molded with a magnetic metal alloy powder, which minimizes Electromagnetic Interference (EMI) and leakage flux. * **Soft Saturation:** Unlike ferrite cores that lose inductance sharply, alloy cores provide a gradual saturation curve, making them stable under high-load transients. * **Low DCR:** Designed to minimize power loss ($I^2R$ loss) and heat generation in high-efficiency circuits. #### Typical Applications 1. **Voltage Regulator Modules (VRM):** Used in CPU/GPU power delivery. 2. **DC-DC Converters:** Point-of-load (POL) power supplies. 3. **High-Current Power Supplies:** Used in servers, networking hardware, and automotive electronics. 4. **Battery Powered Devices:** Where high efficiency and small form factor are critical. --- ### 4. Equivalent Comparison Table If the XFHCL22-R10M is unavailable, engineers often look for these equivalents: | Manufacturer | Series | Key Advantage | | :--- | :--- | :--- | | **Vishay** | IHLP | Industry standard for composite inductors. | | **Bourns** | SRP | High temperature stability. | | **TDK** | SPM | Compact footprint with high reliability. |