The **MH73TBG-R** is a specific electronic component primarily identified as a **Micro-USB Type-B Connector**. These parts are essential in hardware design for power delivery and data synchronization in portable electronics. Below is a detailed breakdown of its specifications, construction, and applications. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Connector Type** | Micro-USB Type-B | | **Gender** | Female (Receptacle) | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Number of Pins** | 5 Pins (VCC, D-, D+, ID, GND) | | **Current Rating** | Usually 1.0A - 1.8A (standard Micro-USB) | | **Voltage Rating** | 30V AC/DC | | **Shielding** | Fully shielded metal shell | --- ### 2. Key Physical Components * **Insulator:** Typically made of high-temperature thermoplastic (LCP or Nylon), designed to withstand reflow soldering temperatures. * **Contacts:** High-conductivity copper alloy, usually plated with **Gold** on the contact area to prevent corrosion and **Tin** on the solder tails for better adhesion. * **Shell:** Stainless steel or copper alloy with nickel plating. It features "Grounding Tabs" or "Shielding Legs" that are soldered to the PCB to provide mechanical stability and EMI protection. * **The "-R" Suffix:** In electronic manufacturing, this usually denotes **Tape & Reel** packaging, indicating the part is intended for automated Pick-and-Place assembly machines. --- ### 3. Pin Configuration The 5-pin layout of the MH73TBG-R follows the standard USB 2.0 Micro-B protocol: | Pin Number | Signal Name | Description | | :--- | :--- | :--- | | 1 | **VBUS** | +5V Power Supply | | 2 | **D-** | Data Negative | | 3 | **D+** | Data Positive | | 4 | **ID** | Identifies Host vs. Slave (OTG) | | 5 | **GND** | Signal and Power Ground | --- ### 4. Common Applications Because of its compact "Right Angle" orientation, it is frequently found in: * **Mobile Devices:** Older smartphones and tablets. * **Peripherals:** Wireless mice, keyboards, and Bluetooth speakers. * **Development Boards:** Basic Arduino or ESP8266/ESP32 modules. * **Charging Circuits:** Battery management systems for Li-Po batteries. ---