The **UP2C-2R2-R** is a high-performance power inductor manufactured by **Eaton (formerly Bussmann)**. It belongs to the **Uni-Pac (UP)** series, which is designed for applications requiring high power density and reliable surface-mount technology (SMT). --- ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Inductance** | 2.2 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 5.38 A | | **Saturation Current (Isat)** | 8.1 A | | **DC Resistance (DCR)** | 11.4 mΩ (Max) | | **Shielding** | Shielded (Drum Core) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Breakdown of the Part Number The alphanumeric code provides specific details about the component's physical and electrical properties: * **UP2C**: Refers to the series name and the physical size/package dimensions. * **2R2**: Represents the inductance value. The "R" acts as a decimal point. $2R2 = 2.2$ µH. * **-R**: Indicates that the part is **RoHS compliant** (lead-free). --- ### 3. Physical Construction and Features * **Shielded Design:** The inductor is magnetically shielded, which minimizes Electromagnetic Interference (EMI). This is crucial for densely packed circuit boards where noise can interfere with sensitive components. * **Ferrite Core:** Utilizes a high-frequency ferrite material that provides low core losses and high efficiency. * **Footprint:** It is designed for SMT (Surface Mount Technology), allowing for automated "pick and place" assembly. --- ### 4. Common Applications Due to its high current handling and low DCR, the UP2C-2R2-R is typically used in: 1. **DC-DC Converters:** Used as an energy storage element in buck, boost, or buck-boost regulators. 2. **Voltage Regulator Modules (VRMs):** Found in computing and server motherboards. 3. **Battery Powered Devices:** Ideal for laptops and handheld devices where space is limited but power efficiency is vital. 4. **Consumer Electronics:** Used in LED drivers and audio equipment to filter power lines. ---