The **KWMS2-2E-R** is a specific electronic component, typically categorized as a **Micro-Limit Switch** or a **Snap Action Switch**. These components are widely used in industrial control systems, automotive electronics, and consumer appliances to detect position or limit travel. --- ### 1. General Specifications The "KW" series generally refers to a standard subminiature micro-switch footprint. Below are the typical technical characteristics associated with this model: | Parameter | Specification (Typical) | | :--- | :--- | | **Contact Type** | Snap Action (Single Pole Double Throw - SPDT) | | **Current Rating** | 2A to 5A (varies by manufacturer) | | **Voltage Rating** | 125V / 250V AC | | **Actuator Type** | Simulated Roller Lever (2E designation) | | **Terminal Type** | PCB Solder Terminals / Right-Angle Pins | | **Operating Force** | ~30g to 150g | --- ### 2. Breakdown of the Model Code While naming conventions can vary slightly between manufacturers (such as Kailh, OMRON, or ZING EAR), the alphanumeric string usually breaks down as follows: * **KW:** Series identifier for Micro-switches. * **MS2:** Size/Series sub-category (Miniature/Subminiature). * **2E:** Refers to the **Actuator Style**. Usually signifies a **Simulated Roller Lever** (a metal lever with a curved end that mimics a wheel). * **R:** Generally indicates the **Terminal Orientation** (Right-hand bend or Right-angle PCB mount) or **RoHS Compliance**. --- ### 3. Pinout Configuration As an SPDT (Single Pole Double Throw) switch, it features three main contact points: 1. **COM (Common):** The input terminal. 2. **NC (Normally Closed):** Connected to COM when the lever is at rest. 3. **NO (Normally Open):** Connected to COM only when the lever is pressed. --- ### 4. Common Applications * **Computer Peripherals:** Used in mice or specialized gaming controllers. * **Safety Interlocks:** Detecting if a door or panel is closed (e.g., microwave doors, 3D printer end-stops). * **Industrial Automation:** Sensing the position of moving mechanical parts. * **Consumer Electronics:** Power buttons or mode selectors in small appliances. --- ### 5. Mechanical Dimensions Most switches in this class follow a standard footprint to ensure interchangeability: ```text Body Length: ~12.8 mm Body Height: ~5.8 mm Body Width: ~6.5 mm Mounting Hole Pitch: ~6.5 mm ```