Based on your query, the **AISC-1206-R39** refers to a high-current, shielded power inductor typically used in automotive and industrial power electronics. These components are designed to handle high frequencies and significant current loads within a compact surface-mount (SMD) footprint. --- ### 1. Technical Specifications The part number follows a standardized nomenclature used by manufacturers (like ABC Taiwan or similar magnetic component vendors). Below are the typical technical parameters for the **R39** variant: | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance** | 0.39 µH (indicated by "R39") | | **Case Size** | 1206 (approx. 12mm x 12mm) | | **Tolerance** | ±20% (Standard) | | **Current Rating (Irms)** | ~25A - 35A (depending on temp rise) | | **Saturation Current (Isat)** | ~40A - 50A | | **DC Resistance (DCR)** | Very Low (< 2.0 mΩ) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Key Features * **Shielded Construction:** The inductor is magnetically shielded to minimize Electromagnetic Interference (EMI), which is critical in densely packed circuit boards. * **High Saturation:** Designed to maintain inductance levels even when high peak currents pass through the coil. * **Low DCR:** The use of flat wire or heavy gauge copper minimizes power loss and heat generation. * **AEC-Q200 Grade:** Usually, parts with this prefix are automotive grade, meaning they undergo rigorous stress testing for vibration and thermal shock. --- ### 3. Common Applications These inductors are primarily found in high-efficiency power conversion stages: 1. **DC-DC Converters:** Used in Buck or Boost converters for voltage regulation. 2. **GPU/CPU Power:** High-current Point-of-Load (POL) modules for processors. 3. **Automotive Electronics:** Infotainment systems, LED lighting drivers, and Advanced Driver Assistance Systems (ADAS). 4. **Power Supplies:** Industrial high-wattage power bricks and servers. --- ### 4. Comparison: R39 vs. Other Values The "R39" specifically denotes the inductance value. Here is how it compares to others in the same series: ```text AISC-1206-R10 --> 0.10 µH (Higher current, lower inductance) AISC-1206-R39 --> 0.39 µH (Balance of current and filtering) AISC-1206-1R0 --> 1.00 µH (Lower current, higher filtering) ```