The **M3H38TAD-R** is a specific electronic component, typically identified as a **high-frequency power inductor** or a specialized magnetic component used in DC-DC converters and voltage regulator modules (VRMs). These components are critical for managing power flow in high-performance computing environments. --- ### 1. Key Technical Specifications While specific parameters can vary slightly by manufacturer (often associated with brands like **Mag Layers** or **Cyntec**), the general characteristics are as follows: | Parameter | Typical Value / Description | |:---|:---| | **Inductance** | Usually ranges from 0.10µH to 0.47µH (High-speed switching) | | **DCR (Direct Current Resistance)** | Ultra-low (often < 0.5 mΩ) to minimize power loss | | **Saturation Current (Isat)** | High capacity (typically 30A to 60A+) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount Device (SMD/SMT) | --- ### 2. Physical Construction The "TAD" series generally refers to a molded construction designed for durability and efficiency. * **Core Material:** Usually a Metal Alloy powder core. This provides high saturation current characteristics compared to traditional ferrite cores. * **Shielding:** Magnetically shielded construction to reduce Electromagnetic Interference (EMI), which is vital for densely packed circuit boards. * **Terminals:** Lead-free (RoHS compliant) plating, designed for high-reliability soldering. --- ### 3. Application Areas These parts are engineered for high-current, high-frequency power supplies where space is limited and efficiency is paramount: 1. **Server & Data Centers:** Used in VRMs (Voltage Regulator Modules) for CPUs and GPUs. 2. **Graphic Cards:** Providing stable current to high-end video memory and processors. 3. **Industrial Computing:** Powering high-speed FPGAs (Field Programmable Gate Arrays). 4. **Telecom:** Base station power modules. --- ### 4. Part Number Breakdown (Typical) While naming conventions vary, the "M3H" and "TAD" usually signify: * **M3H:** Series identifier (often relating to material type or size profile). * **38:** Physical dimensions (e.g., 3.8mm or a specific footprint code). * **TAD:** Technical variation (e.g., specific core material or winding style). * **R:** Packaging (usually "Tape & Reel"). ---