The **RL-3012-R56N** is a specific surface-mount (SMD) power inductor. This component is designed for high-current applications and DC-DC converter circuits where compact sizing and low resistance are critical. --- ### 1. Component Specifications The model number typically decodes into specific electrical and physical characteristics. Below are the technical specifications for this part: | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 0.56 µH (Microhenries) | | **Tolerance** | ±30% (denoted by 'N') | | **Package Size** | 3012 (Approx. 3.0mm x 3.0mm x 1.2mm) | | **Current Rating (Isat)** | Typically 2.0A - 3.5A (varies by manufacturer) | | **DCR (DC Resistance)** | Low (typically < 50 mΩ) | | **Core Material** | Ferrite or Metal Alloy | --- ### 2. Physical Construction The "3012" designation refers to the physical dimensions of the component, which are vital for PCB layout design: * **Length:** 3.0 mm * **Width:** 3.0 mm * **Height:** 1.2 mm (Low profile) The construction usually involves a wire-wound copper coil around a ferrite core, often shielded to reduce **Electromagnetic Interference (EMI)**. --- ### 3. Key Applications Because of its low inductance (0.56µH) and high current capability, the RL-3012-R56N is commonly found in: 1. **Buck/Boost Converters:** Used in voltage regulation for smartphones and tablets. 2. **Laptops & Computing:** Providing power to low-voltage rails for CPUs or GPUs. 3. **LED Drivers:** Managing current flow in compact lighting solutions. 4. **Battery Powered Devices:** Where space is limited and efficiency (low DCR) is required. --- ### 4. Circuit Symbol and Footprint In schematic design and PCB routing, the part is represented as follows: ```markdown Symbol: - ( L1 ) - (Inductor Symbol) Footprint: 2-Pin SMD Pad (3.0mm x 3.0mm) ``` ---