The **W2PA-5BE-R/N** is a specific model of a **micro-USB connector**, typically manufactured by companies like **Walsin** or similar electronic component providers. It is designed for surface-mount technology (SMT) and is commonly found in consumer electronics for power delivery and data transfer. --- ## 1. Technical Specifications The part follows the standard Micro-USB Type B interface. Below are the typical technical parameters for this component: | Parameter | Specification | | :--- | :--- | | **Connector Type** | Micro-USB Type B | | **Gender** | Receptacle (Female) | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Number of Pins** | 5 Pins (VCC, D-, D+, ID, GND) | | **Current Rating** | 1.0A to 1.8A (varies by specific sub-model) | | **Voltage Rating** | 30V AC/DC | | **Durability** | ~10,000 Mating Cycles | --- ## 2. Key Electronic Components & Features ### A. Contact Material and Plating The internal pins (contacts) are usually made of a **Copper Alloy**. * **Plating:** To ensure high conductivity and prevent corrosion, the contact area is typically plated with **Gold (Au)**, while the solder tails are plated with **Tin (Sn)**. ### B. Shell (Shielding) The outer metal "cage" or shell is made of **Stainless Steel** or **Nickel-plated Steel**. * **Purpose:** It provides mechanical strength to the port and acts as an EMI (Electromagnetic Interference) shield, grounding the connection to the PCB's chassis ground. ### C. Insulator Body The internal plastic that holds the pins in place is made of **High-Temperature Thermoplastic** (e.g., LCP - Liquid Crystal Polymer). * **Heat Resistance:** This material is chosen to withstand the high temperatures of reflow soldering during the PCB assembly process. --- ## 3. Pinout Configuration The 5-pin layout is standard for Micro-USB B connectors: | Pin Number | Signal Name | Description | | :--- | :--- | :--- | | **1** | VBUS | +5V Power Supply | | **2** | D- | Data Negative | | **3** | D+ | Data Positive | | **4** | ID | Identification (Used for OTG - On-The-Go) | | **5** | GND | Ground | --- ## 4. Common Applications * **Mobile Devices:** Smartphones and tablets (older generations). * **Charging Modules:** Power banks and battery charging circuits. * **Peripherals:** Computer mice, keyboards, and external hard drives. * **Development Boards:** Microcontrollers like ESP32 or Arduino Nano variants.