The **MHO313TCD-R** is a specific electronic component, typically categorized as a **Surface Mount Device (SMD) Power Inductor**. These parts are essential in power management circuits, particularly for voltage regulation and noise filtering. Below is a detailed breakdown of its specifications, construction, and applications. --- ### 1. General Specifications While specific data can vary slightly by manufacturer (such as Mag Layers or Cyntec), the "313" series generally follows these standard parameters: | Parameter | Typical Value / Description | | :--- | :--- | | **Component Type** | SMD Shielded Power Inductor | | **Inductance** | Varies (e.g., 1.0µH, 2.2µH, 4.7µH - Check specific suffix) | | **Tolerance** | ±20% (indicated by 'M' in similar naming conventions) | | **Dimensions** | Approximately 3.0 x 3.0 x 1.3 mm | | **Mounting Type** | Surface Mount (SMT) | | **Core Material** | Metal Alloy / Ferrite | --- ### 2. Key Features * **Magnetic Shielding:** The "CD" or "TCD" designation often implies a shielded construction. This reduces Electromagnetic Interference (EMI) with surrounding components. * **High Current Handling:** Designed to handle significant DC currents relative to its small footprint without reaching magnetic saturation. * **Low DC Resistance (DCR):** Minimizes power loss (heat) during operation, improving the efficiency of the power supply. * **RoHS Compliant:** The "-R" suffix typically indicates compliance with environmental standards (Lead-Free/RoHS). --- ### 3. Internal Construction The device consists of three primary elements: 1. **Winding:** A copper wire coil that stores energy in a magnetic field. 2. **Core:** A composite metal powder or ferrite core that concentrates the magnetic flux. 3. **Terminations:** Solder pads (usually tin-plated) for secure attachment to the Printed Circuit Board (PCB). --- ### 4. Typical Applications The MHO313TCD-R is commonly found in modern portable electronics where space is limited but power efficiency is critical: * **DC-DC Converters:** Used in Buck (Step-down) or Boost (Step-up) converters. * **Mobile Devices:** Power rails for smartphones, tablets, and wearable tech. * **Laptops:** Localized power regulation for CPUs or GPUs. * **Hard Drives/SSDs:** Filtering noise from the power supply to ensure data integrity. --- ### 5. Identification Code Breakdown | Part Segment | Meaning | | :--- | :--- | | **MHO** | Manufacturer Series Series (High Current/Metal Type) | | **313** | Physical Case Size (3.0mm x 3.0mm x 1.3mm) | | **TCD** | Shielding and Coating specification | | **-R** | RoHS compliant / Tape and Reel packaging | ---