The **M2AS1-6142-R** refers to a high-speed, small-form-factor connector solution, specifically an **M.2 (Next Generation Form Factor / NGFF)** connector manufactured by **Lotes**. These components are critical in modern computing for interfacing SSDs, Wi-Fi modules, and cellular cards with motherboards. --- ### 1. Key Technical Specifications The part number follows a specific nomenclature used by Lotes to define physical dimensions and electrical capabilities. | Feature | Specification | | :--- | :--- | | **Connector Type** | M.2 (NGFF) Card Edge Connector | | **Pitch** | 0.50 mm | | **Mounting Type** | Surface Mount (SMT), Right Angle | | **Keying** | Key M (Commonly used for PCIe x4 NVMe SSDs) | | **Height** | 4.2mm (Connector body height) | | **Pin Count** | 67-Pin | | **Plating** | Gold over Nickel (R denotes RoHS compliance) | --- ### 2. Physical Design and Construction The electronic parts of this connector consist of several high-precision sub-components: * **Contacts:** Made of a copper alloy with gold plating to ensure low contact resistance and high durability (usually rated for 60+ mating cycles). * **Housing:** High-temperature thermoplastic (LCP - Liquid Crystal Polymer) capable of withstanding lead-free reflow soldering temperatures. * **Solder Pegs/Tabs:** These provide mechanical stability to the PCB, ensuring that the connector does not lift off during the insertion or removal of the M.2 card. --- ### 3. Electrical Functionality The M2AS1-6142-R is designed to handle high-frequency signals required by modern data standards: * **Signal Integrity:** Optimized for **PCIe Gen 3 and Gen 4** speeds. The internal pin geometry is designed to minimize crosstalk and electromagnetic interference (EMI). * **Power Delivery:** The 67-pin layout includes dedicated pins for 3.3V power delivery and ground, essential for high-performance NVMe drives. * **Keying Logic:** The "M Key" configuration prevents the accidental insertion of incompatible modules (like B-key SATA-only cards), protecting the motherboard circuitry from voltage mismatches. --- ### 4. Typical Applications This specific part is widely used in hardware engineering for: 1. **Motherboards:** For NVMe M.2 SSD slots. 2. **Embedded Systems:** Industrial PCs requiring compact storage. 3. **Expansion Cards:** PCIe-to-M.2 adapter boards. ---