The **UP5-1R5-R** is a high-performance power inductor designed by Eaton (formerly Cooper Bussmann/Coiltronics). It is part of the **Uni-Pac (UP)** series, known for its high power density and reliability in DC-DC conversion. --- ### ## 1. Technical Specifications Below are the primary electrical and physical characteristics of the UP5-1R5-R: | Parameter | Value | | :--- | :--- | | **Inductance** | 1.5 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 16.4 Amperes | | **Saturation Current (Isat)** | 33.0 Amperes | | **DC Resistance (DCR)** | 2.5 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Shielding** | Shielded (Drum Core) | --- ### ## 2. Core Features * **High Current Handling:** Due to its low DCR (Direct Current Resistance), it can handle significant current with minimal power loss through heat. * **Magnetic Shielding:** The component is shielded, which minimizes Electromagnetic Interference (EMI) with surrounding components on the PCB. * **Rugged Construction:** Designed to withstand high-temperature reflow soldering processes. * **Low Profile:** Part of the UP5 series which balances a relatively compact footprint with high power output. --- ### ## 3. Typical Applications The UP5-1R5-R is commonly found in power management circuits where high efficiency is critical: 1. **Voltage Regulator Modules (VRMs):** Used in CPUs and GPUs to step down voltage. 2. **DC-DC Converters:** Buck, Boost, and Buck-Boost topologies. 3. **Industrial Electronics:** Distributed power systems and battery-powered equipment. 4. **Telecommunications:** Base station power supplies and networking hardware. --- ### ## 4. Identification & Naming Convention * **UP5:** Indicates the series and physical size (Uni-Pac size 5). * **1R5:** Represents the inductance value. The "R" acts as a decimal point (1.5 µH). * **R:** Indicates compliance with RoHS (Lead-free) standards. ---