The part number **581A331L-R60** typically refers to a high-current power inductor, often used in voltage regulator modules (VRMs), servers, and high-performance computing power stages. --- ### 1. General Specifications Based on industry standards for this specific part numbering series (often associated with manufacturers like Pulse Electronics or specialized power component vendors), here are the typical technical characteristics: | Parameter | Typical Value | Description | | :--- | :--- | :--- | | **Inductance** | 0.60 µH (600 nH) | Denoted by the "R60" suffix. | | **Type** | Power Inductor | Surface Mount (SMD) high-current inductor. | | **Construction** | Ferrite Core | Low core loss at high frequencies. | | **Tolerance** | ±10% to ±20% | Standard variance in inductance value. | | **Application** | DC-DC Converters | Primarily for multi-phase buck converters. | --- ### 2. Key Features The **581A331L-R60** is designed for extreme power density. Its primary features include: * **High Saturation Current ($I_{sat}$):** Capable of handling high peak currents (often exceeding 40A-60A) without the inductance dropping significantly. * **Low DCR (DC Resistance):** Designed with flat-wire or thick copper windings to minimize power dissipation and heat generation. * **High Frequency Optimization:** Optimized for switching frequencies ranging from 200kHz to over 2MHz. * **Thermal Stability:** Robust packaging designed to withstand high operating temperatures common in server environments. --- ### 3. Pinout and Physical Form Factor While dimensions can vary slightly by manufacturer, these inductors usually follow a standard footprint for high-current applications: * **Mounting:** Surface Mount Device (SMD/SMT). * **Terminations:** Two large solder pads on the bottom for high current carry capacity and structural integrity. * **Shielding:** Generally magnetically shielded to reduce Electromagnetic Interference (EMI) with neighboring components. --- ### 4. Common Applications This specific inductor is most frequently found in: 1. **CPU/GPU Power Supplies:** VRMs surrounding high-end processors. 2. **Data Center Servers:** High-efficiency power modules. 3. **Networking Equipment:** High-speed routers and switches requiring stable voltage rails.