The **M2REB-S51-R2** is a specialized high-speed interface connector commonly used in industrial computing, automotive electronics, and server hardware. It belongs to a class of mezzanine connectors designed for high-density signal transmission. --- ### 1. Key Technical Specifications The following table highlights the core electrical and mechanical characteristics of the M2REB series: | Feature | Specification | | :--- | :--- | | **Pin Count** | 51 Pins | | **Pitch** | 0.5mm (High Density) | | **Orientation** | Right-Angle / Horizontal | | **Contact Material** | Copper Alloy with Gold Plating | | **Voltage Rating** | 50V AC/DC | | **Current Rating** | 0.5A per pin | | **Durability** | 50 - 100 Mating Cycles | --- ### 2. Physical Components & Design The connector is composed of several critical electronic parts that ensure signal integrity: 1. **Housing:** Made of high-temperature Liquid Crystal Polymer (LCP) or UL94V-0 rated plastic. This allows the part to withstand reflow soldering temperatures. 2. **Contact Terminals:** Usually Phosphor Bronze or Copper Alloy. The "R2" suffix often denotes specific plating thickness or reel packaging styles. 3. **Shielding Shell:** Metal casing (often stainless steel or nickel-plated) to provide **EMI/RFI protection**, crucial for high-speed data. 4. **Solder Tabs:** Large metal pads on the sides of the connector to provide mechanical strain relief to the PCB, preventing the connector from being ripped off during cable insertion. --- ### 3. Application Areas This part is typically used in environments where space is limited but high data throughput is required: * **LVDS Interfaces:** Used in connecting LCD panels to mainboards. * **Embedded Systems:** Found in COM Express modules or small form factor (SFF) industrial PCs. * **Automotive Infotainment:** Connecting display units to the central processing unit. * **SSD/Storage:** Sometimes utilized in proprietary high-speed flash storage interfaces. --- ### 4. Part Number Breakdown While manufacturer codes vary slightly, the nomenclature generally follows this logic: * **M2REB:** Series identifier (Mezzanine/Micro-Interface). * **S51:** 51-position (number of pins). * **R2:** Specific revision or packaging code (often indicating "Tape and Reel" for automated pick-and-place assembly).