## Detailed Specifications: UP2B-6R8-R Inductor The **UP2B-6R8-R** is a high-performance, power inductor manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)**. It belongs to the **Uni-Pac (UP2B)** series, known for its drum-core construction and surface-mount design. --- ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Inductance** | 6.8 µH | | **Tolerance** | ±20% | | **Current Rating (Isat)** | 4.40 A (Saturation Current) | | **Current Rating (Irms)** | 3.65 A (Temperature Rise Current) | | **DC Resistance (DCR)** | 0.0243 Ω (24.3 mΩ) Typical | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD) | | **Shielding** | Non-Shielded | --- ### 2. Physical Dimensions The UP2B series uses a standard footprint often required in industrial and automotive applications. * **Length:** 13.97 mm * **Width:** 9.40 mm * **Height:** 5.94 mm (Max) --- ### 3. Core Features & Construction * **Material:** Ferrite drum core with tinned copper wire. * **High Power Density:** Designed to handle significant current relative to its physical footprint. * **Rugged Design:** The "Uni-Pac" design provides high mechanical stability, making it suitable for environments with vibration or thermal cycling. * **Low DCR:** The low direct current resistance minimizes power loss and heat generation, increasing overall circuit efficiency. --- ### 4. Typical Applications The UP2B-6R8-R is primarily used in power management circuits where high reliability is required: 1. **DC-DC Converters:** Buck, Boost, and SEPIC topologies. 2. **Point of Load (POL):** Voltage regulation for CPUs and FPGAs. 3. **Industrial Electronics:** Power supplies for sensors and control units. 4. **Telecommunications:** Distributed power systems and base station equipment. --- ### 5. Part Number Breakdown Understanding the nomenclature helps in identifying variants: | Component | Meaning | | :--- | :--- | | **UP** | Uni-Pac Series | | **2B** | Size/Package reference | | **6R8** | Inductance value (6.8 µH) | | **-R** | RoHS compliant / Lead-free | ---