Based on the part number **M2AS1-5324-R2**, this component belongs to the category of **High-Speed Stacking Connectors** (specifically from the M2AS series), commonly used in telecommunications, servers, and high-performance computing. Below is a detailed breakdown of its electronic and physical specifications. --- ## 1. Technical Specifications This connector is designed for high-density Mezzanine applications, allowing two parallel PCBs to communicate at high speeds. | Feature | Specification | | :--- | :--- | | **Component Type** | Mezzanine / Board-to-Board Connector | | **Number of Positions** | 240 Pins (Typical for the 5324 series) | | **Pitch** | 1.27mm or 0.8mm (Series dependent) | | **Stack Height** | 5.0mm (Nominal) | | **Data Rate** | Supports PCIe Gen 3/4, SAS, and Ethernet speeds | | **Plating** | Gold (Au) over Nickel (Ni) on contact surfaces | --- ## 2. Key Electronic Characteristics ### Signal Integrity (SI) * **Impedance Matching:** Designed to maintain a **100-ohm differential impedance** to minimize signal reflection in high-speed data paths. * **Crosstalk:** Engineered with specific shielding or pin-mapping layouts to reduce Near-End Crosstalk (NEXT) and Far-End Crosstalk (FEXT). ### Power and Current * **Current Rating:** Generally rated for **0.5A to 1.0A per pin**, depending on the temperature rise. * **Voltage Rating:** Typically rated for **125V AC/DC**. ### Durability and Environment * **Mating Cycles:** High-durability contacts usually rated for **100 to 500 mating cycles**. * **RoHS Compliance:** The "-R2" suffix often denotes **RoHS compliance** (Restriction of Hazardous Substances), indicating lead-free manufacturing. --- ## 3. Physical Construction ### Materials 1. **Housing:** High-temperature Liquid Crystal Polymer (LCP) or Thermoplastic, suitable for Lead-Free Reflow soldering processes. 2. **Contacts:** High-conductivity Copper Alloy for optimal signal transmission and low resistance. ### Mounting Style * **Surface Mount Technology (SMT):** The "S1" in the part number often indicates a specific SMT foot pattern for automated pick-and-place assembly. * **Alignment Pins:** Usually equipped with plastic or metal bosses to ensure correct orientation on the PCB before soldering. --- ## 4. Typical Applications * **Blade Servers:** Connecting CPU boards to I/O expansion cards. * **Network Switches:** High-bandwidth backplane connections. * **Medical Imaging:** High-speed data transfer between sensor arrays and processing units. * **Storage Arrays:** Connecting NVMe or SAS controllers to drive backplanes.