The **CPL-2-50TR-R** is a specific surface-mount electronic component manufactured by **Eaton (formerly Coiltronics)**. It is part of the **CPL (Coupled Inductor)** series, designed specifically for multi-phase voltage regulator modules (VRMs). --- ## 1. Technical Specifications The following table outlines the primary electrical and physical characteristics of the CPL-2-50TR-R: | Feature | Specification | | :--- | :--- | | **Component Type** | Coupled Inductor | | **Inductance (per phase)** | 50 nH | | **Number of Phases** | 2 | | **Rated Current ($I_{sat}$)** | ~40A per phase | | **DCR (Direct Current Resistance)** | 0.6 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package/Footprint** | SMD (Surface Mount Device) | | **Dimensions** | Approx. 7.0 x 6.0 x 5.0 mm | --- ## 2. Key Features and Functions The CPL series is engineered to optimize power delivery in high-performance computing environments. ### Coupled Inductor Technology Unlike standard power inductors, a coupled inductor integrates multiple windings on a single magnetic core. * **Reduced Ripple:** By coupling the phases, the output ripple current can be significantly reduced compared to using discrete inductors. * **Improved Transient Response:** It allows for faster response times to sudden changes in CPU/GPU power demands. ### High Efficiency * **Low DCR:** The extremely low DC resistance (0.6 mΩ) minimizes power loss due to heat, which is critical for maintaining high efficiency in high-current applications. * **Magnetic Materials:** Uses high-frequency ferrite core material to ensure low core losses. --- ## 3. Applications The CPL-2-50TR-R is predominantly used in high-current, multi-phase buck converters. Common applications include: 1. **Server CPUs:** Powering Intel (VR12/VR13) and AMD multi-core processors. 2. **Graphics Cards (GPUs):** High-end gaming and AI processing units. 3. **Data Centers:** Voltage Regulator Modules (VRMs) and Point-of-Load (POL) modules. 4. **Networking:** High-speed routers and switches requiring stable power rails. --- ## 4. Part Number Breakdown The nomenclature for this part helps identify its configuration: * **CPL:** Series Name (Coupled Inductor) * **2:** Number of phases (2 windings) * **50:** Inductance value (50 nH) * **TR:** Tape and Reel packaging * **-R:** RoHS compliant (Lead-free) ---