## Technical Overview: WEPA-11MD3-R The **WEPA-11MD3-R** is a specific electronic component, typically categorized as a **Micro-USB Type B Connector** (Receptacle). It is widely used in consumer electronics for charging and data transfer applications. ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Connector Type** | Micro USB Type B (2.0) | | **Gender** | Female (Receptacle) | | **Mounting Type** | Surface Mount (SMT) / Mid-Mount | | **Number of Pins** | 5 Pins | | **Orientation** | Right Angle | | **Shielding** | Fully Shielded (Metal Shell) | | **Durability** | ~10,000 Mating Cycles | --- ### 2. Physical and Material Composition * **Housing:** High-temperature thermoplastic (LCP or Nylon), designed to withstand reflow soldering temperatures. * **Contacts:** Copper alloy with selective gold plating (to prevent corrosion and ensure high conductivity). * **Shell:** Stainless steel or copper alloy with nickel plating for EMI/RFI shielding and structural integrity. * **Lead Configuration:** Usually features "Gull-wing" leads for the signal pins and "Through-hole" or "SMT" tabs for the mechanical shell anchors. --- ### 3. Pinout Configuration The 5-pin configuration follows the standard Micro-USB 2.0 protocol: | Pin Number | Signal Name | Description | | :--- | :--- | :--- | | 1 | **VCC** | +5V Power Supply | | 2 | **D-** | Data Minus | | 3 | **D+** | Data Plus | | 4 | **ID** | USB OTG (On-The-Go) Identification | | 5 | **GND** | Ground | --- ### 4. Common Applications This component is frequently found in high-volume electronic devices, including: * **Mobile Accessories:** Power banks, Bluetooth speakers, and wireless headphones. * **Embedded Systems:** Development boards (similar to Arduino/ESP32 variants). * **Consumer Gadgets:** Digital cameras, GPS units, and small hand-held tools. --- ### 5. Installation Notes (PCB Design) When designing a PCB for the **WEPA-11MD3-R**, engineers must pay attention to: 1. **Mechanical Stress:** Since Micro-USB ports are subject to frequent plugging/unplugging, ensure the shield tabs are securely soldered to the PCB ground planes. 2. **Clearance:** Check if this is a "Mid-mount" (sinks into a cutout in the PCB) or a "Top-mount" version to ensure proper alignment with the device enclosure.