The **M2ADS-A11-R** belongs to the **M2** series of industrial micro-switches/limit switches, typically manufactured by companies like **Omron** or similar industrial component suppliers. This specific part number represents a sub-miniature basic switch designed for high reliability in tight spaces. --- ### 1. Technical Specifications Below are the primary electronic and mechanical characteristics typically associated with this model: | Parameter | Specification | | :--- | :--- | | **Contact Form** | SPDT (Single Pole Double Throw) | | **Actuator Type** | Hinge Lever | | **Switching Capacity** | 0.1A at 30VDC (Gold Crosspoint Contacts) | | **Termination Style** | Right-angle PCB Terminals | | **Operating Force** | ~0.49 N (50 gf) | | **Contact Resistance** | 100 mΩ max. | | **Mechanical Life** | 1,000,000 operations min. | --- ### 2. Key Electronic Features #### A. Gold Alloy Crosspoint Contacts The "A" in the suffix usually denotes the contact material. Gold alloy is used because: * It prevents oxidation. * It ensures high contact reliability even at **micro-loads** (low voltage and low current). * It is ideal for interfacing with logic circuits (PLCs or Microcontrollers). #### B. SPDT Configuration The switch features three internal pins: 1. **COM (Common):** The input terminal. 2. **NC (Normally Closed):** Connected to COM when the lever is at rest. 3. **NO (Normally Open):** Connects to COM only when the lever is depressed. #### C. PCB Mounting (Right-Angle) The **"R"** in the suffix indicates the terminal orientation. * **Right-Angle Terminals:** These allow the switch to be mounted vertically on a Printed Circuit Board (PCB) while the actuator extends horizontally, or vice-versa, saving vertical clearance. --- ### 3. Application Use Cases Due to its small footprint and high sensitivity, this part is used in: * **Computer Peripherals:** Detecting the presence of paper in printers or mouse click mechanisms. * **Industrial Automation:** End-stop detection for small robotic arms. * **Consumer Electronics:** Door interlocks for small appliances or lid-closure sensors. ---