The **AISC-1210-R47** is a high-current, surface-mount (SMD) power inductor commonly used in DC-DC converters and power management modules. This specific part belongs to a family of molded power inductors designed for high efficiency and compact footprints. --- ### 1. Technical Specifications The part number follows a standardized naming convention that defines its physical dimensions and electrical properties. | Parameter | Value / Description | | :--- | :--- | | **Inductance** | 0.47 µH (denoted by "R47") | | **Case Size** | 1210 (approx. 12.0mm x 10.0mm) | | **Construction** | Shielded, Molded Iron Powder Core | | **Tolerance** | Usually ±20% (M) | | **DCR (DC Resistance)** | Very Low (typically < 2.0 mΩ) | | **Saturation Current** | High (typically 30A - 50A depending on specific series) | --- ### 2. Key Features * **Magnetic Shielding:** The molded construction provides excellent EMI (Electromagnetic Interference) shielding, preventing the magnetic field from interfering with nearby components. * **High Saturation:** Designed to handle high peak currents without the inductance dropping significantly (soft saturation characteristics). * **Low Core Loss:** The iron powder or composite core material is optimized for high-frequency switching (typically up to 5MHz). * **Thermal Stability:** These parts are built to operate in harsh environments, often rated for temperatures between -40°C and +125°C. --- ### 3. Part Number Breakdown Understanding the nomenclature helps in selecting substitutes: | Segment | Meaning | | :--- | :--- | | **AISC** | Manufacturer Series (e.g., Abracon or similar industrial standard) | | **1210** | Physical footprint (12mm length x 10mm width) | | **R47** | Inductance value: "R" acts as a decimal point. **0.47 microhenries.** | --- ### 4. Common Applications Due to its high current handling and low profile, the AISC-1210-R47 is typically found in: 1. **Voltage Regulator Modules (VRMs):** Used in CPU/GPU power delivery. 2. **Point of Load (POL) Converters:** Converting 12V or 5V rails to lower voltages for digital ICs. 3. **Battery Powered Systems:** Where high efficiency is required to extend battery life. 4. **Automotive Electronics:** Infotainment and ADAS power supplies.