Based on your query, the part number **M2AS1-5122-R2/N** typically refers to a high-speed, high-density mezzanine connector, often associated with manufacturers like **Amphenol** or **FCI** (specifically within the Meg-Array® or similar series). These components are designed for high-speed signal integrity in Board-to-Board (BtB) applications. --- ### 1. General Specifications While specific datasheets are required for exact tolerances, here is the technical breakdown for this class of electronic part: | Feature | Specification Details | | :--- | :--- | | **Component Type** | Mezzanine Board-to-Board Plug/Receptacle | | **Pitch** | 1.27mm x 1.27mm (Standard for Meg-Array) | | **Pin Count** | 512 Positions (estimated from the "512" in part number) | | **Material** | High-Temperature Thermoplastic (LCP) | | **Contact Plating** | Gold (Au) over Nickel (Ni) | | **Mounting Type** | Surface Mount Technology (SMT) | | **Data Rate** | Up to 10 Gb/s or 28 Gb/s (depending on stack height) | --- ### 2. Key Electronic Features #### Signal Integrity (SI) These connectors are engineered to minimize crosstalk and impedance mismatch. The grid-array design allows for flexible pin assignment, where ground pins can be interspersed with signal pins to create a "shielded" environment for high-speed differential pairs. #### BGA (Ball Grid Array) Termination The "R2" and suffix often denote the attachment method. This part typically uses **Solder Balls** (BGA style) on the bottom of the connector. This ensures: * Reliable electrical connection to the PCB. * Self-alignment during the reflow soldering process. * Reduced lead inductance compared to traditional through-hole pins. #### Mechanical Robustness * **Polarization:** The housing is keyed to prevent incorrect mating (incorrect orientation). * **Standoffs:** Integrated features allow for consistent solder paste compression and airflow under the connector. --- ### 3. Common Applications Due to the high pin density and high-speed capabilities, this part is found in: 1. **Server Blades:** Connecting CPU boards to daughtercards. 2. **Telecommunications:** High-speed routers and switches. 3. **Medical Imaging:** Processing large amounts of data from sensors to mainboards. 4. **Military/Aerospace:** High-reliability computing modules. --- ### 4. Technical Handling & Assembly ```json { "Process": "SMT Reflow", "Moisture_Sensitivity": "MSL 3", "Pick_and_Place": "Vacuum Cap required", "Inspection": "X-Ray recommended for BGA joints" } ```