The **M2AS1-5131-R2/N** is a specific electronic component, typically categorized as a high-density, high-speed connector often used in specialized networking or industrial computing hardware. Below is a breakdown of its technical characteristics and electronic composition. --- ### 1. General Specifications This part belongs to the family of **M.2 (NGFF - Next Generation Form Factor)** or similar modular edge connectors. It is designed to bridge a PCB (Motherboard) with an expansion module (SSD, WiFi, or AI Accelerator). | Feature | Specification | | :--- | :--- | | **Component Type** | PCB Edge Connector / Slot | | **Mounting Type** | Surface Mount (SMT) | | **Pin Count** | 67-75 Pins (standard for M.2) | | **Orientation** | Right Angle / Horizontal | | **Keying** | Likely 'M' Key or 'B' Key (application specific) | --- ### 2. Key Electronic Attributes To ensure signal integrity at high frequencies, the M2AS1-5131-R2/N incorporates several critical design elements: #### A. Contact Material and Plating * **Base Material:** Usually a Copper Alloy for high conductivity. * **Plating:** Gold (Au) plating over Nickel (Ni) on the contact points. This prevents oxidation and ensures low contact resistance over multiple insertion cycles. #### B. Electrical Ratings * **Current Rating:** Typically **0.5A per pin**. * **Voltage Rating:** Usually **50V AC/DC**. * **Dielectric Withstanding Voltage:** 300V AC for 1 minute. * **Insulation Resistance:** Minimum 500MΩ. #### C. Signal Integrity * **Impedance Matching:** Designed for **100 Ohm differential impedance**, making it compatible with PCIe Gen 3/4, SATA 3.0, and USB 3.1 high-speed lanes. * **Cross-talk Reduction:** The physical spacing (pitch) is optimized (usually 0.5mm) to minimize electromagnetic interference between adjacent pins. --- ### 3. Physical Construction The "R2" and "/N" suffixes in the part number often refer to specific revisions or packaging styles (such as Tape & Reel for automated assembly). * **Housing:** High-temperature Thermoplastic (LCP - Liquid Crystal Polymer). This allows the part to withstand **Reflow Soldering** temperatures (up to 260°C). * **Solder Pegs:** Metal tabs on the sides of the connector provide mechanical stability, ensuring the connector doesn't rip off the PCB when a module is inserted. --- ### 4. Typical Application Circuit When integrating this part into a circuit, it acts as the interface for: 1. **Power Rails:** 3.3V and GND pins. 2. **Data Lanes:** Differential pairs for RX/TX (Receive/Transmit). 3. **Control Signals:** Reset (PERST#), Clock (REFCLK), and Wake (WAKE#).