The **CSAC0530-R82M** is a high-current, surface-mount (SMD) power inductor commonly used in DC-DC converter applications. It belongs to a class of molded power inductors designed for high efficiency and miniaturization. --- ### ## Technical Specifications The part number follows a standard industry convention where dimensions and electrical characteristics are encoded. | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.82 µH | | **Tolerance** | ±20% (indicated by 'M') | | **Case Size** | 0530 (approx. 5.0 x 5.0 x 3.0 mm) | | **Core Material** | Alloy/Metal Powder (Molded) | | **DCR (DC Resistance)** | Typical 7.0 - 9.0 mΩ (approximate) | | **Saturation Current ($I_{sat}$)** | High (ranges from 8A to 12A depending on heat rise) | | **Operating Temperature** | -40°C to +125°C | --- ### ### Key Electronic Characteristics 1. **Molded Construction:** Unlike traditional wire-wound inductors with a hollow core, the CSAC series uses a metal alloy powder pressed around the coil. This provides: * **Magnetic Shielding:** Minimizes Electromagnetic Interference (EMI). * **Soft Saturation:** The inductance drops gradually rather than abruptly as current increases, preventing circuit crashes during power spikes. * **Acoustic Noise Reduction:** The solid structure reduces "buzzing" caused by magnetostriction. 2. **High Current Handling:** Due to the low DC Resistance (DCR), this part can handle significant current with minimal power loss as heat ($P = I^2 R$). 3. **Low Profile:** The "0530" designation indicates a 3.0mm height, making it suitable for compact electronics like laptops, tablets, and high-density power modules. --- ### ### Common Applications * **DC-DC Converters:** Buck, Boost, and Buck-Boost regulators. * **Voltage Regulator Modules (VRM):** Supplying power to CPUs and GPUs. * **Battery Powered Devices:** Efficient energy storage for mobile tech. * **Automotive Infotainment:** Where high reliability and EMI control are required. --- ### ### Equivalent Identification If searching for alternatives, look for parts with the same footprint (5.0 x 5.0 mm) and an **R82** (0.82 µH) rating. Common series from other manufacturers include: * **Vishay:** IHLP-2020CZ * **Bourns:** SRP5030 * **TDK:** SPM5030 ---