The **UP2UC-100-R** is a specific surface-mount power inductor manufactured by **Eaton** (formerly Cooper Bussmann/Coiltronics). It belongs to the Uni-Pac (UP) series, which is designed for high-power density and reliability in DC-DC converters. --- ## 1. Core Specifications The technical performance of the UP2UC-100-R is defined by its inductance value and its ability to handle current without overheating or saturating. | Parameter | Value | | :--- | :--- | | **Inductance** | 10 $\mu$H | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | 0.038 $\Omega$ (Typical) | | **Irms (Root Mean Square Current)** | 4.36 Amps | | **Isat (Saturation Current)** | 4.40 Amps | | **Operating Temperature** | -40°C to +125°C | --- ## 2. Key Electronic Characteristics ### A. Inductance (100) The "100" in the part number follows the standard electronic marking code: * The first two digits (**10**) are the base value. * The third digit (**0**) is the multiplier ($10^0$). * Total: $10 \times 1 = 10 \mu$H. ### B. Saturation Current (Isat) The Isat rating of **4.40A** indicates the point where the inductance drops by a specific percentage (usually 30%) due to magnetic core saturation. This is critical for preventing circuit failure during peak current loads. ### C. Thermal Management (Irms) The Irms rating of **4.36A** represents the continuous current the part can handle while maintaining a temperature rise of roughly 40°C above ambient. This ensures the component does not damage nearby PCB traces or solder joints. --- ## 3. Physical & Material Composition The UP2UC series utilizes specific materials to balance efficiency and size: * **Core Material:** Ferrite. This provides low core losses at high frequencies, making it ideal for modern switching regulators. * **Shielding:** It is a **shielded** inductor. This minimizes Electromagnetic Interference (EMI), preventing the inductor's magnetic field from interfering with sensitive nearby components. * **Footprint:** It is an SMD (Surface Mount Device), specifically designed for automated "pick and place" assembly. --- ## 4. Typical Applications The UP2UC-100-R is most commonly found in: * **DC-DC Converters:** Buck, Boost, and SEPIC topologies. * **Voltage Regulator Modules (VRMs):** Powering CPUs or GPUs. * **Industrial Electronics:** Reliable power supply filtering. * **Telecommunications:** High-density power distribution units. ---