The **M2AS1-4231-R2** is a specialized high-speed connector component, typically part of a mezzanine or backplane connector system (often associated with high-density signal transmission in servers or networking hardware). Below is the technical breakdown of its electronic and mechanical properties. --- ### 1. Technical Specifications The part is designed for high-performance PCB-to-PCB or cable-to-board connections. | Feature | Description | | :--- | :--- | | **Component Type** | High-speed Mezzanine Connector / Socket | | **Pin Configuration** | Multi-pin (High Density) | | **Material** | Liquid Crystal Polymer (LCP) housing with copper alloy contacts | | **Plating** | Gold (Au) over Nickel (Ni) on contact areas for oxidation resistance | | **Mounting Type** | Surface Mount (SMT) or Press-fit (depending on specific variation) | | **Signal Integrity** | Designed for Differential Pair signaling | --- ### 2. Key Electronic Characteristics These components are engineered to minimize signal loss and electromagnetic interference (EMI). * **Impedance Control:** Optimized for 85Ω or 100Ω differential impedance to match high-speed protocols like PCIe Gen 4/5 or Ethernet (10G/40G/100G). * **Low Crosstalk:** The internal geometry uses shielding or specific pin-out patterns (Ground-Signal-Signal-Ground) to prevent interference between adjacent channels. * **Current Rating:** Typically supports low-current signal transmission (approx. 0.5A to 1.0A per pin) rather than high-power delivery. * **Data Rates:** Capable of supporting data transfer speeds ranging from 16 Gbps to 56 Gbps (PAM4). --- ### 3. Physical & Material Composition The "R2" suffix often denotes a specific revision or RoHS compliance standard. * **Housing:** High-temperature plastic capable of withstanding lead-free reflow soldering processes. * **Contacts:** Phosphor bronze or beryllium copper for high elasticity, ensuring a reliable connection even after multiple mating cycles. * **Alignment Features:** Usually includes guide pins or polarization keys to prevent incorrect orientation during assembly. --- ### 4. Common Applications Due to its high-speed nature, this part is found in: 1. **Data Centers:** High-end switches and routers. 2. **Industrial Computing:** Modular CPU cards (COM Express or similar). 3. **Medical Imaging:** High-bandwidth data transfer for MRI or CT scanners. 4. **Storage Systems:** SSD arrays and NVMe backplanes. ---