## CSAB1040A-R56M Electronic Component Overview The **CSAB1040A-R56M** is a high-current, shielded surface-mount (SMD) power inductor. These components are primarily used in power management circuits to store energy, filter noise, and manage voltage transitions. --- ### 1. Key Technical Specifications Based on the part number nomenclature, here are the primary electrical characteristics: | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 0.56 µH (Microhenries) | | **Tolerance** | ±20% (indicated by 'M') | | **Case Size** | 1040 (Approx. 10mm x 10mm x 4.0mm) | | **Construction** | Metal Alloy / Molded Shielded | | **Mounting Type** | Surface Mount (SMD/SMT) | --- ### 2. Physical and Material Properties * **Molded Construction:** The component is typically made from a metallic iron powder core molded around the copper coil. This design provides superior magnetic shielding. * **AEC-Q200 Compliance:** Often, parts in this series are rated for automotive use, meaning they can withstand high vibration and wide temperature fluctuations. * **Shielding:** The "CSAB" series is fully shielded, which minimizes Electromagnetic Interference (EMI) with surrounding components on the PCB. --- ### 3. Common Applications Inductors with low inductance (0.56 µH) and high current ratings like this one are commonly found in: 1. **DC-DC Converters:** Used in "Buck" (step-down) or "Boost" (step-up) regulators. 2. **GPU/CPU Power Supplies:** High-speed switching environments that require high saturation currents. 3. **Automotive Electronics:** Powering infotainment systems, ADAS modules, or LED lighting. 4. **Server Infrastructure:** High-efficiency power modules for data centers. --- ### 4. Part Number Breakdown * **CSAB:** Series designation (High current, molded power inductor). * **1040:** Dimensions (10.x mm length/width, 4.0mm height). * **R56:** Inductance value (R = decimal point; R56 = 0.56 µH). * **M:** Tolerance code (M = ±20%).