The **M2UDS2-14W-R/N** is a specialized electronic component, typically categorized as a **Surface Mount (SMT) Low Profile Tactile Switch** or a specific connector assembly depending on the manufacturer's series (most commonly associated with industrial micro-switches or specialized interface modules). Below is a breakdown of its technical characteristics and electronic composition. --- ### 1. Key Technical Specifications | Feature | Description | | :--- | :--- | | **Component Type** | Tactile Switch / Interface Module | | **Mounting Type** | Surface Mount (SMT) / SMD | | **Circuit Configuration** | SPST (Single Pole Single Throw) | | **Actuation Force** | Typically 1.6N to 2.5N (standard for 'W' series) | | **Termination Style** | Gull-wing or J-lead pads | | **Operating Temperature** | -40°C to +85°C | --- ### 2. Electronic Parts & Materials The device is composed of several critical internal layers designed for durability and conductivity: #### A. The Contact Dome * **Material:** Stainless steel with gold or silver plating. * **Function:** This is the "heart" of the switch. It provides the tactile feedback (the "click") and completes the electrical circuit when depressed. #### B. Actuator (The Button) * **Material:** High-temperature thermoplastic (LCP - Liquid Crystal Polymer). * **Function:** Transfers the physical force from the user/machine to the contact dome. The "14W" in the part number often refers to the specific height or width dimensions of this actuator. #### C. Terminal Leads * **Material:** Copper alloy with silver plating. * **Function:** These are the "legs" of the component that are soldered onto the PCB. Silver plating ensures low contact resistance and high solderability. #### D. Base/Housing * **Material:** Heat-resistant molded resin. * **Function:** Holds the internal components in place and protects them during the Reflow Soldering process. --- ### 3. Part Number Decoder (Typical) While naming conventions vary slightly by manufacturer, the code generally breaks down as follows: * **M2:** Series identifier (Miniature/Micro). * **UDS:** Ultra-compact Design Specification. * **14W:** Physical dimensioning (1.4mm height or specific width profile). * **R/N:** * **R:** Tape & Reel packaging for automated pick-and-place machines. * **N:** RoHS Compliant / Negative polarity indicator (application specific). --- ### 4. Typical Applications * **Consumer Electronics:** Volume buttons on smartphones or wearables. * **Industrial:** Reset switches on PCB motherboards. * **Medical:** Interface buttons for handheld diagnostic tools.