The **M2AS1-4443-R** is a specific part number typically associated with the **M2AS series of Surface Mount (SMT) Low Profile Micro-USB Connectors**. These components are widely used in consumer electronics for charging and data synchronization. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of this component: | Feature | Specification | | :--- | :--- | | **Connector Type** | Micro USB Type B | | **Mounting Type** | Surface Mount (SMT / SMD) | | **Orientation** | Right Angle (Horizontal) | | **Current Rating** | ~1.0A to 1.8A per contact | | **Voltage Rating** | 30V AC (RMS) | | **Durability** | 10,000 Mating Cycles | | **Shielding** | Fully Shielded (Stainless Steel or Copper Alloy) | --- ### 2. Physical Construction The "R" suffix in the part number usually indicates **Tape and Reel** packaging, which is standard for automated pick-and-place assembly lines. * **Housing:** High-temperature thermoplastic (LCP or Nylon), designed to withstand reflow soldering temperatures. * **Contacts:** Copper alloy with gold plating (often 1u" to 30u") to prevent corrosion and ensure low contact resistance. * **Shell Legs:** The "4443" segment of the code often refers to specific mechanical dimensions, such as the length of the solder tabs (legs) that provide mechanical stability to the PCB. --- ### 3. Pin Configuration As a standard Micro-USB Type B connector, it utilizes a 5-pin layout: 1. **VCC (+5V):** Power supply. 2. **D-:** Data Negative. 3. **D+:** Data Positive. 4. **ID:** Identification (used to distinguish between Host and Peripheral in OTG applications). 5. **GND:** Ground. --- ### 4. Common Applications Due to its low profile and robust design, the M2AS1-4443-R is commonly found in: * **Mobile Devices:** Smartphones and tablets. * **Peripherals:** Wireless mice, keyboards, and headphones. * **IoT Modules:** ESP32 or Arduino-based development boards. * **Portable Power:** Power banks and battery charging circuits. --- ### 5. Soldering Considerations ```c // Recommended Reflow Profile Notes: // Preheat: 150°C to 180°C for 60-120 seconds // Peak Temperature: 260°C (Max) for 5-10 seconds // Cooling: Gradual to prevent thermal shock to the plastic housing ```