The **CMLB065T-R47MS** is a high-current, low-profile power inductor commonly used in DC-DC converter applications. It belongs to a class of molded power inductors designed for high efficiency and miniaturization. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.47 µH | | **Tolerance** | ±20% (M) | | **DC Resistance (DCR)** | ~3.8 mΩ (Typ) / 4.1 mΩ (Max) | | **Saturation Current (Isat)** | ~22.0 A | | **Heating Current (Irms)** | ~15.0 A | | **Operating Temperature** | -55°C to +125°C | | **Dimensions (L x W x H)** | 7.1 x 6.6 x 5.0 mm | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying equivalent parts: * **CMLB**: Series name (typically indicates a metal molded power inductor). * **065T**: Size code (approx. 6mm x 6mm footprint, with 5mm height). * **R47**: Inductance value ($0.47$ microhenries). * **M**: Tolerance ($\pm 20\%$). * **S**: Standard internal code/Material designation. --- ### 3. Key Features The CMLB065T-R47MS is engineered for performance in modern electronics through several design choices: * **Magnetic Shielding:** The molded construction provides excellent magnetic shielding, which minimizes Electromagnetic Interference (EMI) with surrounding components. * **Composite Core:** It utilizes a metal alloy powder core. This material allows for a **soft saturation** characteristic, meaning the inductance drops gradually as current increases, rather than crashing abruptly. * **High Current Density:** Its very low DC Resistance (DCR) minimizes power loss due to heat, making it suitable for high-efficiency power supplies. * **Rugged Design:** The molded body protects the internal coil from mechanical stress and environmental factors. --- ### 4. Common Applications This inductor is typically found in high-frequency switching power supplies, including: 1. **Voltage Regulator Modules (VRM):** Used in laptops and desktop motherboards. 2. **DC-DC Converters:** Point-of-load (POL) converters for CPUs and GPUs. 3. **Portable Electronics:** High-current power rails in tablets and smartphones. 4. **Automotive Infotainment:** Power filtering for in-car displays and sensors. ---