The **LD1-6R8-R** is a power inductor manufactured by **Eaton (formerly Coiltronics/Bussmann)**. It belongs to the LD series, which is characterized by its high power density and surface-mount design. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Inductance** | 6.8 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | ~2.54 A (Typical) | | **Saturation Current (Isat)** | ~2.00 A (Typical) | | **DC Resistance (DCR)** | ~0.0528 Ω (Max) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD) | | **Packaging** | Tape and Reel (indicated by the -R suffix) | --- ### 2. Component Composition & Structure The LD1-6R8-R is built using specific materials to handle high-frequency power conversion: * **Core Material:** Typically a Ferrite core, which minimizes core losses at high frequencies. * **Shielding:** This is a **shielded** inductor. The magnetic field is contained within the component, reducing Electromagnetic Interference (EMI) with neighboring components on the PCB. * **Terminations:** Matte tin over copper, ensuring excellent solderability for reflow processes. --- ### 3. Application Use Cases This specific inductor is commonly found in the following circuits: * **DC-DC Converters:** Used in buck, boost, and SEPIC topologies for voltage regulation. * **Power Supplies:** Found in laptops, handheld instruments, and networking equipment. * **Noise Filtering:** Acts as a low-pass filter to smooth out ripple current in power lines. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: | Segment | Meaning | | :--- | :--- | | **LD1** | Series and Physical Size (approx. 6.1mm x 6.1mm x 3.0mm) | | **6R8** | Inductance Value (6.8 microhenries) | | **-R** | RoHS Compliant and Tape & Reel packaging |