The **WJFX-U3D2-R** is a high-performance, surface-mount (SMT) connector designed for high-speed data transmission. It is specifically a **USB 3.0 Type-A Female interface**, widely used in computer motherboards, laptops, and peripheral devices. --- ### ## Technical Specifications The following table outlines the key electrical and physical parameters of the component: | Feature | Specification | | :--- | :--- | | **Connector Type** | USB 3.0 Type-A (9-Pin) | | **Gender** | Female (Receptacle) | | **Mounting Type** | SMT (Surface Mount Technology) + DIP (Through-hole Shell) | | **Orientation** | Right Angle / Horizontal | | **Data Transfer Rate** | Up to 5 Gbps (SuperSpeed) | | **Current Rating** | 1.8A (Power pins), 0.25A (Signal pins) | | **Voltage Rating** | 30V AC/DC | | **Durability** | 5,000 Mating Cycles | --- ### ### Internal Pin Configuration Unlike older USB 2.0 connectors (4 pins), the WJFX-U3D2-R utilizes **9 pins** to achieve high-speed data transfer: 1. **VBUS (+5V):** Power supply. 2. **D- / D+:** Differential pair for USB 2.0 backward compatibility. 3. **GND:** Signal/Power ground. 4. **SSRX- / SSRX+:** SuperSpeed Receiver differential pair. 5. **SSTX- / SSTX+:** SuperSpeed Transmitter differential pair. --- ### ### Key Features & Materials * **High-Speed Shielding:** The metal shell is typically made of copper alloy with nickel plating to prevent Electromagnetic Interference (EMI) and provide structural grounding. * **Gold Plating:** The contact points usually feature gold plating (often 1u" to 30u") to ensure low contact resistance and prevent oxidation. * **Heat Resistance:** The insulator material (often LCP or PBT) is designed to withstand high-temperature reflow soldering processes. --- ### ### Applications * **PC/Laptops:** Main interface for connecting flash drives, mice, and keyboards. * **Industrial Control:** Used in embedded systems for data logging. * **Consumer Electronics:** Smart TVs, gaming consoles, and docking stations.