The part number **2294900-R** generally refers to a specific series of high-speed, high-density connectors, typically manufactured by **TE Connectivity** or associated with **SFP/QSFP** (Small Form-factor Pluggable) cage assemblies. These components are critical in networking and telecommunications hardware. --- ### 1. General Specifications While specific datasheets can vary by manufacturer revisions, the "2294900-R" part typically belongs to the **microQSFP (Quad Small Form-factor Pluggable)** or **SFP+** cage family. | Feature | Description | | :--- | :--- | | **Component Type** | Cage Assembly / Connector Housing | | **Port Configuration** | Usually 1x1 (Single Port) | | **Mounting Type** | Through-hole (Press-fit) or Surface Mount | | **Material** | Copper Alloy with Nickel Plating | | **EMI Shielding** | Integrated EMI springs or gaskets | | **Termination** | Press-fit (Action Pin) or Solder | ### 2. Key Functional Components The "R" suffix often denotes **RoHS compliance** or a specific **Reel packaging** for automated assembly. * **Cage Housing:** Provides the mechanical structure to hold the transceiver module. It acts as a heat sink interface and provides mechanical stability. * **EMI Springs:** These are small metal tabs that ensure electrical continuity between the cage and the faceplate/bezel to prevent electromagnetic interference (EMI) leakage. * **Heat Sink Compatibility:** Often designed with a cutout or bridge to allow a clip-on heat sink to rest directly on the optical module. * **Light Pipes:** Some versions include integrated clear plastic "pipes" that channel light from board-mounted LEDs to the front panel for status indication. ### 3. Applications These parts are engineered for high-bandwidth environments where thermal management and signal integrity are paramount. 1. **Data Centers:** High-speed switches and routers. 2. **Telecommunications:** Base stations and backhaul equipment. 3. **Storage Area Networks (SAN):** Fiber channel equipment. 4. **Computing:** High-performance servers. ### 4. Technical Considerations for Assembly When integrating the 2294900-R into a PCB design, engineers must consider: * **PCB Footprint:** Exact hole diameters for press-fit pins are crucial to prevent board damage. * **Belly-to-Belly Mounting:** Whether the cage supports mounting on both sides of the PCB to increase port density. * **Airflow:** The cage design must allow for sufficient airflow across the module to prevent overheating. ---