The **M2RS-45-R** is a specific electronic component, typically categorized as a **Surface Mount (SMT) Low Profile Jack** or an **RJ45 Connector**. These parts are foundational in telecommunications and networking hardware. --- ### 1. Key Technical Specifications The part number generally follows a standard industry naming convention for modular connectors. | Specification | Details | | :--- | :--- | | **Connector Type** | RJ45 (8P8C - 8 Positions, 8 Contacts) | | **Mounting Type** | Surface Mount Device (SMD/SMT) | | **Orientation** | Right Angle / Horizontal | | **Profile** | Low Profile (Reduced height for slim PCBs) | | **Shielding** | Usually Unshielded (depending on specific manufacturer suffix) | | **Contact Plating** | Gold over Nickel (typically 6u" to 50u") | --- ### 2. Physical Design Features The "45" in the part number usually refers to the **RJ45 standard**, while the "R" often signifies **Tape & Reel** packaging for automated pick-and-place assembly. * **Solder Pads:** Designed with flat leads that sit on the surface of the PCB, allowing for soldering on only one side of the board. * **Alignment Pegs:** Often includes plastic posts on the bottom to ensure the connector is perfectly centered before reflow soldering. * **Housing Material:** High-temperature thermoplastic (e.g., LCP or PA9T) capable of withstanding the heat of infrared (IR) reflow ovens. --- ### 3. Application Use Cases Because of its low-profile and surface-mount nature, this part is used in space-constrained electronics: 1. **Networking Gear:** Compact routers, switches, and access points. 2. **Industrial Automation:** PLCs (Programmable Logic Controllers) and I/O modules. 3. **IoT Devices:** Smart home hubs that require Ethernet connectivity in a small form factor. 4. **Embedded Systems:** Single-board computers (SBCs) where height is a primary constraint. --- ### 4. Circuit Implementation When integrating the M2RS-45-R into a schematic, consider the following electrical requirements: ```cpp // Typical Electrical Ratings Max_Voltage: 125V AC; Max_Current: 1.5A per contact; Dielectric_Strength: 1000V AC (RMS); Insulation_Resistance: >500M Ohms; ``` *Note: As an RJ45 connector, it does not contain active electronics or integrated magnetics (MagJack) unless specified by a variation in the prefix. It acts as a passive physical interface.* ---