The **GL603USB-A** is a specific electronic component typically identified as a **Micro-USB Type-B Female Socket** (though sometimes associated with specific USB-A adapters or custom PCB connectors). It is widely used in consumer electronics for power delivery and data transmission. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. Technical Specifications The GL603 series generally follows the standard physical and electrical parameters for high-retention USB connectors. | Feature | Specification | | :--- | :--- | | **Connector Type** | USB Type-B Micro (5-Pin) / USB-A Variant | | **Mounting Type** | Surface Mount (SMT) or Through-Hole (DIP) | | **Current Rating** | 1.0A - 1.8A per contact | | **Voltage Rating** | 30V AC/DC | | **Contact Resistance** | ≤ 30mΩ | | **Insulation Resistance** | ≥ 100MΩ | | **Operating Temperature** | -20°C to +85°C | --- ### 2. Physical Components The part is composed of four primary electronic materials: 1. **Housing:** Usually made of High-Temperature Thermoplastic (LCP or PA9T) to withstand reflow soldering temperatures. 2. **Contacts:** Copper Alloy (Phosphor Bronze) plated with **Gold** on the contact area for high conductivity and **Tin** on the solder tails for ease of assembly. 3. **Shell:** Stainless steel or Copper alloy with Nickel plating to provide EMI/RFI shielding and structural grounding. 4. **Retention Features:** Often includes "kinked" leads or side tabs to ensure the part remains seated on the PCB during the soldering process and resists mechanical stress during plugging. --- ### 3. Pinout Configuration Standard GL603-style USB connectors follow the universal 5-pin layout: | Pin Number | Name | Function | | :--- | :--- | :--- | | 1 | **VCC** | +5V Power Supply | | 2 | **D-** | Data Minus | | 3 | **D+** | Data Plus | | 4 | **ID** | Identification (OTG logic) | | 5 | **GND** | Ground | --- ### 4. Common Applications * **Mobile Devices:** Charging ports for older smartphones and tablets. * **Peripherals:** Power input for PC mice, keyboards, and external hard drive enclosures. * **IoT Modules:** Powering ESP32 or Arduino-based development boards. * **Power Banks:** Used as the recharge input port. ---