The **M2AS1-5214-R** is a specific part number typically associated with high-performance **M.2 (NGFF) Connectors**, often manufactured by companies like **Lotes**. These components are critical in modern computing for interfacing SSDs, Wi-Fi cards, and other expansion modules with a motherboard. --- ## Technical Specifications The "5214" series generally denotes specific physical characteristics such as height, pinning, and keying. | Feature | Specification | | :--- | :--- | | **Connector Type** | M.2 (Next Generation Form Factor - NGFF) | | **Interface** | SMT (Surface Mount Technology) | | **Pin Count** | 67-Pin or 75-Pin (Standard for M.2) | | **Keying** | Typically **M-Key** (Supports PCIe x4 / NVMe) | | **Height** | 4.2mm - 5.2mm (Commonly "H" dimension) | | **Orientation** | Right Angle / Horizontal | | **Compliance** | RoHS Compliant, Lead-Free | --- ## Core Electronic Components & Materials ### 1. Contact Points (Terminals) * **Material:** Usually Phosphor Bronze or Copper Alloy. * **Plating:** Gold plating on the contact area (to ensure high conductivity and corrosion resistance) and Tin plating on the solder tails. * **Function:** Facilitates the high-speed transfer of differential signals (PCIe lanes) and power (3.3V). ### 2. Insulator Body (Housing) * **Material:** High-temperature Thermoplastic (e.g., LCP - Liquid Crystal Polymer). * **Properties:** Must withstand the heat of reflow soldering (up to 260°C) without warping. ### 3. Grounding & Shielding * **Solder Tabs:** Large metal tabs on the sides of the connector provide mechanical stability (stretching the "hold-down") and act as a ground path to reduce EMI (Electromagnetic Interference). --- ## Pinout Functionality While the physical part is just the socket, it is designed to carry specific electronic signals: 1. **Power Supply:** Multiple pins dedicated to **3.3V DC**. 2. **High-Speed Data:** Differential pairs for **PCIe Gen 3 or Gen 4** lanes. 3. **Clocking:** Reference clock signals (REFCLK+ / REFCLK-). 4. **Control Signals:** Including Reset (PERST#), Wake (WAKE#), and Device Sleep (DEVSLP). --- ## Usage in PCBA Design When integrating the M2AS1-5214-R into a circuit board design, engineers must consider: * **Footprint:** Precise pad layout for the 0.5mm pitch pins. * **Thermal Management:** Ensuring there is enough copper plane area around the connector to dissipate heat from the M.2 module. * **Impedance Control:** Routing the PCB traces at 85-100 ohms to match the high-speed signal requirements of the connector.