The **M2AC-A73-R/Q** is a specialized high-performance connector part, typically associated with automotive or high-reliability industrial applications. Based on standard industry nomenclature (often used by manufacturers like Hirose or similar high-speed interconnect brands), this part is an **M.2 (NGFF) Connector** designed for automotive environments. --- ### 1. Technical Specifications This component is designed to facilitate the connection between a PCB and an M.2 module (such as an SSD, Wi-Fi card, or AI accelerator). | Feature | Specification | | :--- | :--- | | **Connector Type** | M.2 (Next Generation Form Factor - NGFF) | | **Keying** | Type A (Often used for Wi-Fi/Bluetooth/NFC) | | **Mounting Type** | Surface Mount (SMT), Right Angle | | **Pitch** | 0.5 mm | | **Height** | ~2.3mm to 4.2mm (Depending on specific variant) | | **Automotive Grade** | Yes (Indicated by 'Q' or 'R' suffixes for reliability) | --- ### 2. Electronic Characteristics The part is engineered to handle high-frequency signals while maintaining physical integrity under stress. * **Signal Integrity:** Designed for PCI Express (PCIe) Gen 3 or Gen 4, USB 3.0, and SATA 3.0 protocols. * **Contact Resistance:** Typically 50mΩ maximum to ensure low power loss. * **Current Rating:** Approximately 0.5A per pin. * **Voltage Rating:** 50V AC/DC. * **Operating Temperature:** Extended range, often **-40°C to +105°C**, meeting automotive standards (AEC-Q100/200 compliance paths). --- ### 3. Key Design Features The suffix codes **"R/Q"** often denote specific manufacturing or packaging standards: 1. **Vibration Resistance:** Features enhanced gold plating and reinforced soldering "nails" (tabs) to prevent the connector from shearing off the PCB in high-vibration environments (like a moving vehicle). 2. **Heat Dissipation:** The housing is made of High-Temperature Thermoplastic (LCP) to withstand reflow soldering temperatures. 3. **EMI Shielding:** Often includes grounding metal tabs to reduce Electromagnetic Interference, which is critical in automotive sensor applications. --- ### 4. Common Applications * **Automotive Infotainment:** Connecting Wi-Fi/BT modules. * **ADAS (Advanced Driver Assistance Systems):** Interfacing with AI processing cards or high-speed storage. * **Telematics Units:** 5G/LTE communication modules. ---