The **UP1B-1R0-R** is a high-performance power inductor manufactured by Eaton (formerly Bussmann). It is part of the UP series, designed for high power density and efficiency in surface-mount applications. --- ### 1. Technical Specifications The following table summarizes the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Inductance** | 1.0 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 5.9 Amps | | **Saturation Current (Isat)** | 9.0 Amps | | **DC Resistance (DCR)** | 9.2 mΩ (Max) | | **Package / Case** | Non-Standard (SMD) | | **Dimensions** | 8.9mm x 6.1mm x 5.0mm | | **Operating Temp** | -40°C to +125°C | --- ### 2. Key Internal Components The UP1B-1R0-R is engineered with specific materials to handle high current without excessive heat: * **Core Material:** Ferrite core technology, which provides high efficiency and low core losses at high frequencies. * **Winding:** Copper wire with high-temperature insulation to prevent short-circuiting under thermal stress. * **Shielding:** It is a **shielded** inductor (indicated by the construction), which minimizes Electromagnetic Interference (EMI) with surrounding components. * **Terminations:** Matte tin-plated lead-free terminations, making it compliant with modern RoHS soldering standards. --- ### 3. Part Number Breakdown Understanding the nomenclature helps in identifying variants: | Prefix | Series/Size | Inductance Code | RoHS Status | | :--- | :--- | :--- | :--- | | **UP** | **1B** | **1R0** | **-R** | | Uni-Pac Series | Size Format (B) | 1.0 Microhenry | RoHS Compliant | --- ### 4. Common Applications Due to its high saturation current and low DCR, this inductor is typically found in: * **DC-DC Converters:** Used as an energy storage element in buck, boost, or buck-boost regulators. * **Battery Powered Equipment:** Ideal for laptops, tablets, and handheld devices where space is limited but power demands are high. * **Voltage Regulator Modules (VRM):** Specifically for CPUs and GPUs on motherboards. * **Consumer Electronics:** LED drivers and power supplies for gaming consoles. ---