The **KS-2R8334-R** is a specific surface-mount inductors (SMD) manufactured by **Eaton (formerly Cooper Bussmann)**. It belongs to the **FP1107 series** of high-frequency, high-current power inductors, commonly used in voltage regulator modules (VRMs). --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | ~125 nH to 300 nH (depending on specific tolerance) | | **Current Rating (Irms)** | High Current (Typically up to 40A - 70A) | | **DCR (Direct Current Resistance)** | Extremely Low (~0.29 mΩ to 0.45 mΩ) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Package / Case** | 11.0mm x 7.2mm x 7.5mm (approx) | | **Core Material** | Ferrite | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Construction The KS-2R8334-R (FP1107 series) features a **flat-pac** design. Its construction is optimized for: * **Vertical orientation:** Saves PCB real estate in dense power designs. * **Ferrite Core:** Ensures low core losses at high switching frequencies. * **Ruggedized leads:** Designed for robust solder joints in high-vibration environments. --- ### 3. Common Applications Due to its ability to handle very high currents with minimal power loss (low DCR), this part is primarily found in: * **Multi-phase VRMs:** Powering CPUs and GPUs in servers and workstations. * **Point-of-Load (POL) Converters:** Step-down regulators for FPGAs and ASICs. * **Data Centers:** High-density power supplies and networking equipment. --- ### 4. Advantages & Limitations * **Pros:** * Negligible power dissipation due to ultra-low resistance. * Excellent thermal stability. * Designed for high-frequency switching (up to 2MHz+). * **Cons:** * Relatively large physical height compared to low-profile power inductors. * Requires precise PCB pad layout for thermal management.