## ASPI-1040HI-R16: Technical Overview The **ASPI-1040HI-R16** is a high-performance, surface-mount (SMD) power inductor manufactured by Abracon. It belongs to the ASPI-1040HI series, characterized by its molded construction and high current capabilities. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.16 µH | | **Tolerance** | ±20% (indicated by 'M' in some contexts, though R16 is the value) | | **Inductance Code** | R16 (R represents the decimal point) | | **DC Resistance (DCR)** | ~0.75 mΩ (Typ) / 1.0 mΩ (Max) | | **Saturation Current (Isat)** | ~55.0 A | | **Heating Current (Irms)** | ~30.0 A | | **Operating Temperature** | -40°C to +125°C | | **Case Size** | 11.5 x 10.3 x 4.0 mm | --- ### 2. Design and Construction The ASPI-1040HI series uses specific engineering techniques to achieve high efficiency in a compact footprint: * **Molded Shielded Construction:** The inductor is encased in a magnetic metal powder slurry. This provides excellent EMI (Electromagnetic Interference) shielding and prevents noise leakage to surrounding components. * **High Saturation Core:** The iron powder core allows the component to handle extremely high peak currents without the inductance dropping off significantly (low magnetic saturation). * **Low DCR:** The use of thick flat-wire or high-quality copper windings minimizes DC resistance, which reduces power loss and heat generation during operation. --- ### 3. Application Use-Cases This specific part (0.16 µH) is designed for high-frequency, high-current power conversion. Common applications include: * **Voltage Regulator Modules (VRM):** Used in CPU and GPU power delivery on motherboards. * **DC/DC Converters:** Ideal for "Point of Load" (POL) converters where high efficiency is required. * **Battery Powered Devices:** High efficiency helps extend battery life by reducing thermal waste. * **Servers and Networking:** High-reliability power supplies for data centers. --- ### 4. Part Number Breakdown The part number follows a standard nomenclature: * **ASPI:** Abracon Surface Power Inductor. * **1040:** Dimensions (approx. 10mm x 10mm x 4.0mm). * **HI:** High Intensity / High Current series. * **R16:** Inductance value (0.16 microhenries). ---