The **M2UDS-21-R** is a specific electronic component, typically categorized as a **Micro-USB Connector** (specifically a Micro-B type). These components are essential in modern electronics for power delivery and data transfer between devices. Below is a detailed breakdown of its specifications and electronic characteristics. --- ### 1. General Specifications The M2UDS-21-R is a Surface Mount Device (SMD) designed for high-density PCB layouts. | Feature | Specification | | :--- | :--- | | **Connector Type** | Micro-USB Type B | | **Gender** | Receptacle (Female) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Orientation** | Right Angle / Horizontal | | **Number of Contacts** | 5 Pins | | **Termination** | Solder | --- ### 2. Electrical Characteristics These parameters define how the part behaves within a circuit under load. * **Current Rating:** Typically 1.0A to 1.8A per contact (depending on the specific manufacturer's batch). * **Voltage Rating:** 30V AC/DC. * **Contact Resistance:** $\le$ 30 mΩ (milliohms) initially. * **Insulation Resistance:** $\ge$ 100 MΩ at 500V DC. * **Dielectric Withstanding Voltage:** 100V AC for 1 minute. --- ### 3. Pinout Configuration The standard 5-pin configuration for this Micro-B connector is as follows: | Pin Number | Signal Name | Description | | :--- | :--- | :--- | | 1 | **VCC** | +5V Power Supply | | 2 | **D-** | Data Negative | | 3 | **D+** | Data Positive | | 4 | **ID** | Identification (Used for OTG functions) | | 5 | **GND** | Ground | --- ### 4. Physical and Mechanical Features * **Shielding:** The outer shell is usually made of Stainless Steel or Copper Alloy with Nickel plating to prevent Electromagnetic Interference (EMI). * **Durability:** Rated for approximately 10,000 mating cycles. * **Retention Force:** Features "locking" side tabs (recesses) to ensure a secure connection with the cable. * **PCB Legs:** Often includes "shell stakes" or "SMT tabs" that are soldered to the PCB for mechanical strength, preventing the connector from being ripped off during cable insertion/removal. --- ### 5. Common Applications Due to its small footprint and reliability, it is found in: * **IoT Devices:** Smart sensors and controllers. * **Consumer Electronics:** Bluetooth speakers, older smartphones, and power banks. * **Development Boards:** Used for programming and powering ESP32 or Arduino-style modules.