The part number **W2TG0-1A4-R2/N** (often stylized as W2TG0-1A4-R2/N or similar variants) refers to a specific series of **Wire-to-Board Connectors**, commonly associated with manufacturers like **Wcon** or other high-density connector specialists. These components are critical in modern electronics for establishing secure, low-profile electrical connections between a wire harness and a Printed Circuit Board (PCB). --- ## 1. Technical Specifications Based on the standard nomenclature for this part series, the technical parameters are typically as follows: | Parameter | Specification | | :--- | :--- | | **Connector Type** | Wire-to-Board Header | | **Pitch** | 1.25mm or 2.0mm (Varies by sub-series) | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Number of Rows** | Single Row | | **Housing Material** | High-Temperature Thermoplastic (LCP/Nylon) | | **Contact Plating** | Gold Flash or Tin-Lead over Nickel | | **Current Rating** | ~1.0A - 2.0A AC/DC | | **Voltage Rating** | 125V - 250V AC/DC | --- ## 2. Part Number Breakdown The alphanumeric code provides specific instructions for manufacturing and sourcing: 1. **W2TG0**: The Series prefix, usually denoting a specific mechanical footprint and latching mechanism. 2. **1A4**: Indicates the pin configuration (e.g., 1 row, 4 positions). 3. **R2**: Refers to the orientation and packaging (e.g., Right Angle, Tape & Reel). 4. **/N**: Often signifies compliance or material variants, such as "Halogen Free" or specific RoHS plating requirements. --- ## 3. Key Features & Applications ### Features * **Low Profile:** Designed for compact consumer electronics where vertical space is limited. * **Polarization:** The housing is keyed to prevent incorrect mating (incorrect orientation). * **Secure Locking:** Features a friction lock or positive lock to ensure the cable doesn't vibrate loose. ### Common Applications * **Laptop/Notebook Internals:** Connecting speakers or batteries to the motherboard. * **LED Lighting:** Powering LED strips from a control board. * **Industrial Sensors:** Interfacing small sensor modules with a main CPU board. * **Smart Home Devices:** Used in thermostats and security cameras. --- ## 4. Soldering & Footprint Example When integrating this part into a PCB design, the footprint usually follows a Surface Mount Technology (SMT) pattern. ```c // Typical Footprint Representation (Top View) // [P1] [P2] [P3] [P4] <-- Solder Pads // |_________________| // | | <-- Metal Solder Tabs (for mechanical stability) ``` ---