The **M2AS1-5231-R** is a specific part number primarily associated with high-performance **M.2 (NGFF) Connectors**, typically manufactured by companies like **Lotes**. These components are critical in modern computing for interfacing SSDs, Wi-Fi modules, and LTE cards with the motherboard. --- ### 1. Technical Specifications The part number encodes specific mechanical and electrical characteristics. Below is a breakdown of its typical parameters: | Parameter | Specification | | :--- | :--- | | **Connector Type** | M.2 (Next Generation Form Factor - NGFF) | | **Keying** | Key M (Commonly for PCIe x4 NVMe SSDs) | | **Pitch** | 0.50 mm | | **Height** | 3.20 mm (Standard Mid-height) | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Number of Positions** | 67 Pins | | **Contact Plating** | Gold Flash or 15u" Gold over Nickel | | **Voltage Rating** | 50V AC/DC | --- ### 2. Key Features and Materials The M2AS1 series is designed for high-speed data transmission and durability. * **Materials:** * **Housing:** High-temperature thermoplastic (LCP), UL 94V-0 rated (suitable for reflow soldering). * **Contacts:** Copper alloy for high conductivity. * **Performance:** * Supports **PCIe Gen 3 and Gen 4** signal integrity. * Low contact resistance (typically max 55mΩ). * Operating temperature range: -40°C to +85°C. --- ### 3. Application Areas This part is ubiquitous in compact electronics where space is a premium but high bandwidth is required. 1. **Consumer Electronics:** Laptops, Ultrabooks, and Mini-PCs for NVMe storage. 2. **Enterprise:** Server blade motherboards and data center storage arrays. 3. **Embedded Systems:** Industrial PCs requiring rugged M.2 storage or AI acceleration modules. --- ### 4. Comparison of Variants The "5231" and the suffix "R" usually denote specific packaging or height variations within the M2AS series. | Suffix/Part Code | Meaning | | :--- | :--- | | **5231** | Internal manufacturer code for Height (3.2mm) and Keying (M). | | **-R** | Typically indicates **Tape & Reel** packaging for automated SMT assembly. | ---