Based on the part number structure, the **WJFX-U1B2-R** appears to be a specific series of **USB Connectors**, typically manufactured by companies like **Walsin Technology** or similar electronic component vendors. Below is a breakdown of the technical specifications and electronic characteristics associated with this type of component. --- ## 1. Technical Specifications The WJFX-U1B2-R is a **USB 2.0 Type A Female Connector**, designed for Through-Hole (THT) mounting on a Printed Circuit Board (PCB). | Feature | Specification | | :--- | :--- | | **Interface Type** | USB 2.0 Type A (Standard) | | **Gender** | Receptacle (Female) | | **Mounting Type** | Right Angle, Through-Hole | | **Number of Ports** | Single Port | | **Orientation** | Horizontal (90-degree) | | **Contact Material** | Copper Alloy (Gold plating on contact area) | | **Shell Material** | Stainless Steel or Copper Alloy (Nickel plated) | --- ## 2. Electrical Characteristics The performance of this connector is governed by the standard USB 2.0 electrical requirements: * **Current Rating:** Usually 1.5A per contact for power pins (VCC/GND) and 0.5A for data pins. * **Voltage Rating:** 30V AC (rms). * **Contact Resistance:** $\leq$ 30 m$\Omega$ (initial). * **Insulation Resistance:** $\geq$ 1000 M$\Omega$. * **Dielectric Withstanding Voltage:** 500V AC for 1 minute. --- ## 3. Mechanical & Environmental Features The suffix **"-R"** often denotes compliance with environmental standards or specific packaging. ### Physical Design * **Kinked Leads:** The pins are often slightly bent (kinked) to provide a "snap-in" feature that holds the connector securely to the PCB before soldering. * **Shielding:** Full metal shell for EMI/RFI protection and mechanical grounding. ### Environmental * **RoHS Compliant:** The "-R" suffix typically signifies that the part is Lead-Free and RoHS compliant. * **Operating Temperature:** Generally ranges from $-40^\circ\text{C}$ to $+85^\circ\text{C}$. --- ## 4. Typical Applications This part is a "workhorse" component found in various consumer and industrial electronics: 1. **Computer Peripherals:** Keyboards, mice, and printers. 2. **Embedded Systems:** Port for firmware updates or data logging on development boards. 3. **Chargers:** Wall adapters and power banks. 4. **Industrial Controllers:** PLC interfaces and HMI panels.