The **A-USB-BPFS-R** is a specific electronic component manufactured by **Assmann WSW Components**. It is a Type B USB 2.0 female connector designed for through-hole mounting on Printed Circuit Boards (PCBs). ### 1. Technical Specifications The following table highlights the core technical characteristics of the A-USB-BPFS-R: | Feature | Specification | | :--- | :--- | | **Connector Type** | USB Type B | | **Gender** | Female (Receptacle) | | **USB Version** | USB 2.0 (High-Speed) | | **Mounting Type** | Through-Hole, Right Angle | | **Number of Contacts** | 4 Pins | | **Current Rating** | 1.0A to 1.5A per contact | | **Voltage Rating** | 30V AC/DC | | **Shielding** | Fully Shielded (Metal Shell) | | **Contact Plating** | Gold (on mating area) | | **Housing Material** | Thermoplastic (UL94V-0 rated) | --- ### 2. Key Design Elements * **Form Factor:** The Type B connector is typically "boxy" or square-shaped. It is most commonly used on "upstream" devices such as printers, scanners, and external audio interfaces. * **Right-Angle Orientation:** The "R" in the part number often denotes a right-angle orientation. This means the opening of the USB port sits perpendicular to the pins that go through the PCB, allowing the cable to plug in parallel to the board. * **Mechanical Stability:** It features "kinked" or straight solder tabs on the metal shell. These tabs are soldered into the PCB to provide mechanical strain relief, ensuring the connector doesn't rip off the board during repeated plugging/unplugging. * **Gold Plating:** The contacts are typically plated with gold over nickel to prevent oxidation and ensure a low-resistance electrical connection over the component's lifespan. --- ### 3. Pinout Configuration As a standard USB 2.0 Type B connector, it follows the universal pinout: 1. **Pin 1:** VCC (+5V Power) 2. **Pin 2:** D- (Data Minus) 3. **Pin 3:** D+ (Data Plus) 4. **Pin 4:** GND (Ground) 5. **Shell:** Shield / Chassis Ground --- ### 4. Typical Applications * **Computer Peripherals:** Printers, scanners, and multi-function devices. * **Audio Equipment:** USB DACs, MIDI controllers, and audio interfaces. * **Industrial:** Programmable Logic Controllers (PLCs) and CNC machine interfaces. * **Development Boards:** Used on some older or larger microcontroller evaluation kits for robust connectivity.