The part number **0512CDMCCDS-R68MC** refers to a specific surface-mount (SMD) power inductor. This component is typically manufactured by **Sumida** (CDMC series) or similar manufacturers following the same naming convention. --- ## 1. Part Number Breakdown The alphanumeric code describes the physical and electrical characteristics of the component: | Segment | Meaning | Description | | :--- | :--- | :--- | | **0512** | Case Size | Approx. 5.4mm x 5.2mm (Footprint) and 1.2mm (Height). | | **CDMC** | Series Type | Metal composite mold type (high current, low profile). | | **CDS** | Construction | Shielded construction to reduce EMI (Electromagnetic Interference). | | **R68** | Inductance | **0.68 µH** (R denotes the decimal point). | | **M** | Tolerance | **±20%** (Standard for power inductors). | | **C** | Packaging/Finish | Usually denotes tape and reel packaging or specific lead-free finish. | --- ## 2. Technical Specifications While exact values can vary slightly by manufacturer, the standard specs for a **0.68µH 0512** inductor are: * **Inductance:** 0.68 µH * **DC Resistance (DCR):** Typically very low (~10mΩ to 15mΩ) to minimize power loss. * **Saturation Current ($I_{sat}$):** High, often between **8A and 12A** (The point where inductance drops by 30%). * **Operating Temperature:** Generally **-40°C to +125°C**. * **Core Material:** Carbonyl Iron or Metal Alloy (provides "soft" saturation characteristics). --- ## 3. Key Features & Applications ### Features 1. **Low Profile:** The "12" in 0512 signifies a height of only **1.2mm**, making it ideal for slim electronics. 2. **Magnetic Shielding:** The molded metal powder construction acts as a shield, preventing magnetic fields from interfering with nearby components. 3. **High Current Handling:** Unlike traditional wire-wound ferrites, these metal composite inductors can handle high current spikes without sudden saturation. ### Applications * **Voltage Regulator Modules (VRM):** Used in CPU/GPU power phases. * **DC-DC Converters:** Found in smartphones, tablets, and laptops. * **LED Drivers:** Providing steady current for backlighting. * **Automotive Infotainment:** Used in compact power supply circuits for car electronics. ---