The **MH78FDG-R** is a specific electronic component typically identified as a **Micro-USB Connector** (specifically a Type-B Female Receptacle). These parts are foundational in consumer electronics for power delivery and data synchronization. --- ### 1. Component Overview The MH78FDG-R belongs to the family of **I/O Connectors**. It is designed for Surface Mount Technology (SMT) and is frequently found in smartphones, tablets, and portable charging devices. | Feature | Specification | | :--- | :--- | | **Connector Type** | Micro USB Type-B | | **Gender** | Female (Receptacle) | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Pin Count** | 5 Pins (Standard Micro-USB configuration) | | **Shielding** | Fully shielded metal shell | --- ### 2. Physical & Mechanical Attributes * **Form Factor:** It features a "Mid-Mount" or "Bottom-Mount" design to minimize the profile height on the Printed Circuit Board (PCB). * **Durability:** Rated for high insertion cycles (usually up to 10,000 cycles) due to its stainless steel or copper alloy shell. * **Retention:** Includes physical "legs" or solder tabs that provide mechanical stability to prevent the connector from being ripped off the board during cable extraction. --- ### 3. Electrical Characteristics The 5-pin configuration follows the standard USB 2.0 pinout: 1. **VBUS:** +5V Power Supply. 2. **D-:** Data Negative. 3. **D+:** Data Positive. 4. **ID:** Identification (Used to distinguish between Host/Slave in OTG). 5. **GND:** Ground. --- ### 4. Typical Applications * **Charging Ports:** Used in Bluetooth speakers, power banks, and older smartphones. * **Data Transfer:** Connecting microcontrollers (like Arduino or ESP32 variants) to a PC. * **Embedded Systems:** Providing a diagnostic or firmware update port for industrial hardware. ---