The part number **M8YV1-355-R** corresponds to a specialized thermal solution component, specifically a **Flat Heat Pipe** or **Vapor Chamber assembly**, often utilized in high-density electronics such as laptops, servers, or industrial power modules. --- ### 1. Technical Specifications Heat pipes of this series are designed to transport heat away from high-power components (like CPUs or GPUs) to a heat sink or cooling fan. | Parameter | Characteristic | | :--- | :--- | | **Component Type** | Flat Heat Pipe / Vapor Chamber | | **Material** | High-purity Oxygen-Free Copper | | **Working Fluid** | Deionized Water (Vacuum sealed) | | **Thermal Conductivity** | > 10,000 W/m·K (Effective) | | **Operating Temp Range** | 30°C to 120°C | | **Suffix "-R"** | Often denotes RoHS compliance or specific Reel/Right-hand orientation | --- ### 2. Internal Structure and Operation The M8YV1-355-R operates on the principle of **Phase Change Material (PCM)** heat transfer. It consists of three primary layers: 1. **The Container:** A sealed copper tube flattened to a specific thickness (often 1.0mm to 3.0mm). 2. **The Wick Structure:** A sintered copper powder or mesh lining the inner walls. This acts as a capillary pump to return condensed liquid to the heat source. 3. **The Vapor Space:** The hollow center where evaporated gas travels at high speeds toward the cooler end. --- ### 3. Key Electronic Applications This specific part is integrated into electronic assemblies to prevent "thermal throttling." * **Computing:** Used in Ultrabooks and workstations where vertical space is limited. * **Power Electronics:** Cooling MOSFETs and IGBTs in power converters. * **LED Systems:** High-output LED arrays that require rapid heat dissipation to maintain color accuracy and lifespan. --- ### 4. Component Marking Breakdown While manufacturers vary, the part number generally follows this logic: | Segment | Meaning | | :--- | :--- | | **M8** | Diameter or Width reference (e.g., 8mm width) | | **YV1** | Internal Wick structure type (Sintered or Composite) | | **355** | Length (Typically 355mm) | | **R** | Regulatory status (RoHS) or Revision code | ---