The **M2AS1-5142-R** is a specific part number typically associated with high-performance electronic interconnect solutions, specifically **M.2 (NGFF) connectors**. These are commonly used in modern computing to interface SSDs, Wi-Fi cards, and cellular modules. ### 1. Technical Specifications Below are the primary electronic and mechanical characteristics of the M2AS1-5142-R series: | Feature | Specification | | :--- | :--- | | **Connector Type** | M.2 (Next Generation Form Factor) | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Number of Positions** | 67-Pin | | **Keying** | Typically "M" Key (for PCIe x4/SATA SSDs) | | **Pitch** | 0.50 mm | | **Stacking Height** | ~4.2mm (Common variant) | | **Contact Plating** | Gold (Flash or selective) | --- ### 2. Key Electronic Components & Materials The construction of this part involves several critical materials to ensure signal integrity and durability: * **Housing:** High-temperature Thermoplastic (UL 94V-0 rated) to withstand reflow soldering temperatures. * **Contacts:** Copper Alloy. This provides high conductivity and flexibility for the spring-loaded pins. * **Plating:** * *Contact Area:* Gold plating to prevent oxidation and ensure low contact resistance over multiple mating cycles. * *Solder Tail:* Tin or Lead-free plating for optimal solderability to the PCB. * **Solder Pegs/Tabs:** Used for mechanical stability on the PCB to prevent the connector from lifting during the insertion of an M.2 card. --- ### 3. Functional Applications The M2AS1-5142-R is engineered for high-speed data transmission. Its electronic design supports: 1. **PCI Express (PCIe):** Supports Gen 3 and Gen 4 speeds, allowing for rapid data transfer between the storage device and the CPU. 2. **SATA 3.0:** Compatible with legacy SATA-based M.2 drives. 3. **USB 3.0 / DisplayPort:** Depending on the system routing, it can facilitate various high-speed I/O protocols. ### 4. Typical Footprint Layout When designing a PCB for this part, engineers must account for the 0.5mm pitch. The "R" in the suffix often denotes **RoHS compliance** and specific **Reel packaging** for automated pick-and-place assembly. ---