The **M2AS1-A343-R2/N** is a specific part number typically associated with **M.2 (NGFF) Connectors**, often manufactured by companies like **LOTES** or other specialized connector suppliers used in PC and server hardware. These components are surface-mount technology (SMT) connectors designed to interface M.2 modules (SSD, Wi-Fi, Bluetooth) with a motherboard or PCB. --- ### Technical Specifications and Electronic Profile | Feature | Specification Details | | :--- | :--- | | **Connector Type** | M.2 (Next Generation Form Factor / NGFF) | | **Mechanical Keying** | Type A Key (commonly used for Wireless/IoT modules) | | **Mounting Type** | Surface Mount (SMT), Right Angle | | **Pin Count** | 67-75 Positions (Standard M.2 layout) | | **Pitch** | 0.50 mm | | **Operating Voltage** | 50V AC/DC | | **Current Rating** | 0.5A per pin | | **Durability** | ~60 Mating Cycles | --- ### Component Breakdown #### 1. Pin Configuration and Signal Integrity The electronic design of the "A343" series focuses on high-speed differential signaling. It is designed to support: * **PCIe Gen 3/Gen 4:** Ensuring minimal crosstalk and impedance control (usually 85Ω or 100Ω). * **USB 2.0/3.0:** Often routed through the A-Key for Bluetooth functions on Wi-Fi cards. #### 2. Materials and Construction * **Housing:** High-temperature thermoplastic (LCP - Liquid Crystal Polymer) to withstand reflow soldering temperatures (up to 260°C). * **Contacts:** Copper alloy with selective gold plating (typically 3μ" to 15μ") to ensure low contact resistance and prevent oxidation. * **Solder Tabs:** Large metal "ears" or anchors on the sides provide mechanical stability to prevent the connector from being ripped off the PCB during module insertion. #### 3. Part Number Suffix Decoding * **-R2:** Usually denotes a specific revision of the physical mold or a change in the reel packaging quantity. * **/N:** Often indicates "Halogen-Free" or "Lead-Free" compliance (RoHS/Reach). --- ### Application Use Cases This specific connector is found in: 1. **Motherboards:** For Wi-Fi/Bluetooth module slots. 2. **Industrial PCs:** Compact storage or communication interfaces. 3. **Laptops:** Slim-profile connectivity for M.2 2230 or 2242 form factor cards. ---