The part number **2301843-1** refers to a specific electronic component manufactured by **TE Connectivity**. It is a high-performance connector typically used in telecommunications and data networking. --- ### 1. Component Overview The **2301843-1** is part of the **zQSFP+ (QSFP28)** family. These connectors are designed for high-speed data transfer applications, supporting speeds up to 28 Gbps per channel. | Feature | Specification | | :--- | :--- | | **Manufacturer** | TE Connectivity | | **Series** | zQSFP+ (QSFP28) | | **Connector Type** | Receptacle (SMT) | | **Number of Positions** | 38 Positions | | **Data Rate** | Up to 28 Gbps per channel | | **Mounting Type** | Surface Mount (SMT), Right Angle | --- ### 2. Key Technical Features * **High-Speed Signal Integrity:** Designed to minimize EMI (Electromagnetic Interference) and crosstalk, which is critical for 100G Ethernet and InfiniBand EDR protocols. * **Backward Compatibility:** The zQSFP+ interface is physically compatible with standard QSFP+ connectors, allowing for easy upgrades in existing hardware designs. * **Gold Plating:** The contact mating area is typically plated with Gold (0.76µm / 30µin) to ensure long-term conductivity and corrosion resistance. * **Enhanced Thermal Management:** Usually paired with cages and heat sinks to handle the heat generated by high-speed transceivers. --- ### 3. Applications This component is found in infrastructure that requires massive data throughput: 1. **Network Switches & Routers:** High-density port connections. 2. **Data Centers:** Server-to-switch interconnects. 3. **Storage Equipment:** High-speed SAN (Storage Area Network) environments. 4. **Telecommunications:** Base stations and backhaul equipment. --- ### 4. PCB Layout Example When designing a PCB for this part, the high-speed differential pairs must be carefully routed. A simplified footprint logic follows: ```text Pin 1-19: Top Row (Signal & Ground) Pin 20-38: Bottom Row (Signal & Ground) [PADS] -> SMT Soldering [PEGS] -> Mechanical alignment and grounding ```