The **CSBX1050-R82M** is a high-performance, surface-mount (SMD) power inductor commonly used in DC-DC converter applications. It belongs to a class of shielded power inductors designed for high-frequency power supplies where efficiency and space are critical. --- ### 1. Technical Specifications The part number follows a standard industry nomenclature that defines its physical and electrical characteristics. | Parameter | Value / Description | | :--- | :--- | | **Inductance** | 0.82 µH | | **Tolerance** | ±20% (indicated by 'M') | | **Series** | CSBX (Molded Power Inductor) | | **Size Code** | 1050 (Approx. 10mm x 11mm x 5mm) | | **Core Material** | Metal Alloy / Carbonyl Powder | | **Shielding** | Magnetically Shielded (Molded) | --- ### 2. Key Features * **High Current Handling:** Due to the metal powder core, these inductors can handle high saturation currents ($I_{sat}$) without a sharp drop in inductance. * **Low DCR (Direct Current Resistance):** Designed with thick copper wire to minimize power loss and heat generation. * **Soft Saturation:** Unlike ferrite cores that lose inductance abruptly, the CSBX series typically exhibits a "soft" saturation curve. * **Low EMI:** The molded construction acts as a natural magnetic shield, reducing electromagnetic interference with surrounding components. --- ### 3. Application Areas These parts are typically found in power management stages of modern electronics: 1. **Voltage Regulator Modules (VRM):** Used in CPU/GPU power phases. 2. **DC-DC Converters:** Point-of-Load (PoL) converters for laptops and servers. 3. **Battery Powered Devices:** High-efficiency power stages for portable equipment. 4. **Automotive:** Infotainment and ADAS power rails (if AEC-Q200 qualified). --- ### 4. Comparison: Molded vs. Ferrite Inductors | Feature | CSBX1050 (Molded) | Standard Ferrite Inductor | | :--- | :--- | :--- | | **Saturation** | Soft (gradual) | Hard (sudden) | | **Acoustic Noise** | Very Low (solid structure) | Can "buzz" under load | | **Footprint** | Compact for current rating | Larger for same current | | **Frequency** | Optimized for high freq | Varies |