The **AMPLH5030S-R68M** is a high-performance, surface-mount (SMD) power inductor. It is commonly used in DC-DC converters and power management modules due to its high current handling and compact size. --- ### 1. Part Number Breakdown The nomenclature of the part typically follows this structure: | Segment | Value | Description | | :--- | :--- | :--- | | **Series** | AMPLH | High-current, shielded power inductor series | | **Dimensions** | 5030 | Size: approx. 5.0mm x 5.0mm x 3.0mm | | **Inductance** | R68 | 0.68 microhenries (µH) | | **Tolerance** | M | ±20% | --- ### 2. Technical Specifications Below are the typical electrical characteristics for this specific component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.68 µH | | **DC Resistance (DCR)** | ~5.0 mΩ to 8.0 mΩ (Low resistance for efficiency) | | **Saturation Current (Isat)** | ~15A to 18A (Current where inductance drops 30%) | | **Heating Current (Irms)** | ~10A to 13A (Current causing 40°C temp rise) | | **Operating Temp** | -40°C to +125°C | | **Shielding** | Magnetically Shielded (reduces EMI) | --- ### 3. Key Features and Construction * **Metal Alloy Core:** Unlike traditional ferrite inductors, these use a molded metal powder core. This allows for **soft saturation** (the inductance drops gradually rather than abruptly), which protects circuits during current spikes. * **Magnetic Shielding:** The molded construction naturally shields the magnetic field, minimizing electromagnetic interference (EMI) with neighboring components on the PCB. * **Low DCR:** The use of thick copper wire ensures minimal power loss through heat, making it ideal for high-efficiency power supplies. --- ### 4. Common Applications This inductor is designed for high-density electronic environments: * **Voltage Regulator Modules (VRM):** Used in motherboards and GPUs. * **DC-DC Converters:** Buck, Boost, and Buck-Boost topologies. * **Battery Powered Devices:** Smartphones, tablets, and portable medical equipment. * **Automotive Electronics:** Infotainment systems and ADAS sensors (if AEC-Q200 qualified). ---