## TCDA0707-R30M: Technical Specifications and Overview The **TCDA0707-R30M** is a high-current, surface-mount (SMD) power inductor. It is designed primarily for DC-DC converter applications where high efficiency and high power density are required. --- ### 1. Key Technical Specifications Below are the typical parameters for this specific part number: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.30 µH (indicated by "R30") | | **Tolerance** | ±20% (indicated by "M") | | **Package Size** | ~7.0mm x 7.0mm (indicated by "0707") | | **Core Material** | Composite Alloy (Molded) | | **Mounting Type** | Surface Mount Device (SMD/SMT) | | **Shielding** | Magnetically Shielded | --- ### 2. Physical Construction The "TCDA" series usually refers to **Molded Power Inductors**. Unlike traditional wire-wound inductors with a ferrite drum core, these are constructed by: * **Winding:** A flat or round copper wire coil. * **Molding:** Encapsulating the coil in a metallic magnetic powder (iron alloy). * **Benefits:** This construction results in a "soft saturation" characteristic, meaning the inductance doesn't drop abruptly when the current increases. --- ### 3. Part Number Breakdown Understanding the nomenclature helps in identifying variants: | Segment | Meaning | | :--- | :--- | | **TCDA** | Series Identifier (Automotive or High-Current Molded Series) | | **0707** | Dimensions (Approx. 7.3 x 6.8 x 7.0 mm depending on height) | | **R30** | Inductance Value (R denotes the decimal; 0.30 microhenries) | | **M** | Tolerance Code (M = ±20%) | --- ### 4. Electronic Characteristics & Applications * **Low DCR (DC Resistance):** Because of the molded design, it offers very low resistance, minimizing power loss as heat. * **High Saturation Current ($I_{sat}$):** Designed to handle high peak currents without the core saturating. * **EMI Shielding:** The molded body acts as a natural shield, reducing electromagnetic interference with neighboring components. **Typical Applications:** * GPU/CPU Voltage Regulator Modules (VRM). * High-current POL (Point of Load) converters. * Automotive electronics (Infotainment/ADAS). * SSD Power Supplies. ---