The **UP5-5R6-R** is a high-performance, shielded power inductor manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)**. It belongs to the Uni-Pac (UP) series, designed specifically for high power density and reliability in surface-mount applications. --- ### 1. Technical Specifications Below is a breakdown of the key electrical and physical characteristics of the UP5-5R6-R: | Parameter | Specification | | :--- | :--- | | **Inductance** | 5.6 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | ~14.1 Amperes | | **Saturation Current (Isat)** | ~18.8 Amperes | | **DC Resistance (DCR)** | ~5.8 mΩ (Max) | | **Package / Case** | UP5 (Surface Mount) | | **Operating Temperature** | -40°C to +125°C | | **Shielding** | Ferrite Core (Shielded) | --- ### 2. Key Components and Features * **Ferrite Core:** The "R" at the end of the series indicates the use of a ferrite material which provides high efficiency and low core losses at high frequencies. * **Magnetic Shielding:** The part is magnetically shielded to minimize Electromagnetic Interference (EMI), making it suitable for densely packed circuit boards where noise crosstalk must be avoided. * **Low DCR:** The extremely low DC resistance (5.8 mΩ) ensures minimal power loss through heat, which is critical for maintaining high efficiency in power supplies. * **Robust Construction:** The UP5 size is designed to handle high transient current spikes without saturating immediately. --- ### 3. Common Applications The UP5-5R6-R is typically found in power management circuits where high current and small footprints are required: * **DC-DC Converters:** Used as the primary energy storage element in buck, boost, or buck-boost regulators. * **Voltage Regulator Modules (VRMs):** Found in servers and high-end workstations to provide stable power to CPUs/GPUs. * **Industrial Electronics:** Used in motor controllers and high-current power supplies. * **Battery Powered Systems:** Ideal for portable equipment requiring high efficiency to extend battery life. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: * **UP5:** Represents the physical size/footprint (Uni-Pac size 5). * **5R6:** Represents the inductance value. The "R" acts as a decimal point (5.6). * **-R:** Indicates that the part is RoHS compliant (lead-free).