Based on the technical nomenclature commonly used in the electronics industry, the **WJFX-U2E2-R** typically refers to a specialized **USB connector or interface module**, often used in automotive or industrial hardware designs. Below is a breakdown of its characteristics and technical specifications. --- ## 1. Component Overview The WJFX series generally represents high-speed data transmission connectors. This specific part is designed for surface mount or through-hole integration on a Printed Circuit Board (PCB). ### Technical Specifications | Feature | Description | | :--- | :--- | | **Connector Type** | USB 2.0 / USB Type-A (Dual Stacked) | | **Interface** | High-Speed Data Transfer | | **Mounting Type** | R/A (Right Angle) / SMT or Through-hole | | **Housing Material** | High-temperature Thermoplastic (UL94V-0) | | **Contact Plating** | Gold over Nickel | | **Current Rating** | 1.5A per contact (approx.) | | **Shielding** | Full Metal Shielding for EMI protection | --- ## 2. Key Electronic Features ### A. EMI/RFI Protection The "R" suffix often denotes **RoHS compliance** or a specific **Receptacle** configuration with enhanced shielding. The metal shell is designed to ground high-frequency noise, preventing electromagnetic interference with nearby components on the PCB. ### B. Signal Integrity The internal contacts are designed for low impedance and minimal signal loss, ensuring that the 480 Mbps (USB 2.0 standard) data rate is maintained without significant jitter or packet loss. ### C. Mechanical Durability These parts are built for high "mating cycles." * **Contact Force:** Optimized to prevent accidental disconnection. * **Solder Tabs:** Provide mechanical stability to prevent the connector from being ripped off the board during repeated plugging/unplugging. --- ## 3. Pinout Structure (Standard USB 2.0) If the component follows standard USB wiring, the internal architecture for each port in the dual stack (E2) is as follows: | Pin Number | Signal Name | Description | | :--- | :--- | :--- | | 1 | **VCC** | +5V Power Supply | | 2 | **D-** | Data Minus | | 3 | **D+** | Data Plus | | 4 | **GND** | Ground | | Shell | **Shield** | Protective Ground | --- ## 4. Common Applications * **Infotainment Systems:** Automotive dashboard USB ports. * **Industrial PCs:** Ruggedized data entry points. * **Consumer Electronics:** Charging and data hubs.