The **A-USB-APFS-R** is a specific electronic hardware component, typically categorized as a **USB 2.0 Type A Female Solder Connector**. It is widely used in PCB (Printed Circuit Board) design for providing a standard USB interface for power and data transfer. --- ### 1. Technical Specifications Below are the primary electrical and mechanical characteristics of the A-USB-APFS-R: | Feature | Specification | | :--- | :--- | | **Connector Type** | USB Type A (Version 2.0) | | **Gender** | Female (Receptacle) | | **Mounting Type** | Through-Hole (Right Angle) | | **Number of Contacts** | 4 Pins | | **Voltage Rating** | 30V AC/DC | | **Current Rating** | 1.5A per contact | | **Housing Material** | Thermoplastic (UL 94V-0) | | **Contact Plating** | Gold over Nickel | --- ### 2. Pinout Configuration Standard USB 2.0 connectors like the A-USB-APFS-R follow a 4-pin layout: 1. **VCC (+5V):** Power supply. 2. **D-:** Data negative. 3. **D+:** Data positive. 4. **GND:** Ground. *Note: The outer metal shell is usually connected to the Shield/Chassis ground.* --- ### 3. Key Physical Features * **Right Angle Orientation:** The connector sits at a 90-degree angle to the PCB, making it ideal for side-entry ports on devices like computers, chargers, or embedded systems. * **Shielding:** It features a metal "shield" or "shell" to prevent Electromagnetic Interference (EMI) and provide mechanical stability when plugged/unplugged. * **Solder Tails:** The pins are designed to pass through the PCB holes and be soldered on the opposite side, providing a strong mechanical bond. --- ### 4. Common Applications * **Consumer Electronics:** PC motherboards, USB hubs, and gaming consoles. * **Power Supplies:** Wall adapters and portable power banks. * **Industrial Boards:** Interfacing microcontrollers (like Arduino or ESP32) with peripheral devices. * **DIY Projects:** Creating custom USB-powered devices or data loggers. --- ### 5. Implementation Example When designing a PCB footprint for this part, the standard pitch (spacing) for the data pins is **2.0mm**, while the distance between the structural shield tabs is significantly wider to ensure a secure fit. ```c // Example: Pseudo-code for a Microcontroller identifying this port void setup() { Serial.begin(9600); // USB Data lines (D+/D-) handle this communication pinMode(VCC_PIN, INPUT); // Monitoring 5V rail from A-USB-APFS-R } ```