The **M2AS1-4211-R** is a specific electronic component, typically categorized as a **Micro-Switch** or **Tactile/Action Switch** within the M2 series. These are commonly used in industrial controls, automotive interfaces, and consumer electronics where reliable mechanical-to-electrical signal conversion is required. --- ### 1. Technical Specifications Below are the general electrical and mechanical characteristics for this part series: | Parameter | Specification (Typical) | | :--- | :--- | | **Contact Type** | Single Pole Double Throw (SPDT) | | **Switch Action** | Momentary (On-Off-On or similar) | | **Current Rating** | 0.1A to 3A (depending on load type) | | **Voltage Rating** | 125V AC / 30V DC | | **Terminal Type** | Solder or PCB Mount | | **Operating Force** | 1.5N - 2.5N | | **Lifecycle** | ~100,000 Cycles | --- ### 2. Breakdown of the Part Number While naming conventions can vary slightly by manufacturer, the code "M2AS1-4211-R" generally breaks down as follows: * **M2**: The Series designation (indicates physical frame size and mounting style). * **AS1**: Actuator style (often signifies a specific lever or plunger shape). * **42**: Internal circuit configuration (e.g., Normally Open/Normally Closed arrangements). * **11**: Terminal plating or spacing (often indicates Silver or Gold contacts). * **-R**: RoHS Compliance (Restriction of Hazardous Substances). --- ### 3. Key Electronic Features * **Contact Resistance:** Designed to be extremely low (typically <50mΩ) to ensure signal integrity in low-voltage circuits. * **Bouncing Time:** These switches have a very short "debounce" period, making them suitable for interfacing with microcontrollers (MCUs) like Arduino or ESP32. * **Insulation Resistance:** Usually rated at 100MΩ minimum at 500V DC to prevent leakage current between terminals. * **Dielectric Strength:** Capable of withstanding 1,000V AC for one minute without breakdown. --- ### 4. Common Applications Due to its robust mechanical design and reliable electrical switching, this part is found in: 1. **Computer Peripherals:** Mouse buttons or keyboard specialty keys. 2. **Home Appliances:** Door interlocks for microwaves or control panels for washing machines. 3. **Industrial Automation:** Limit switches to detect the position of a moving arm. 4. **Medical Devices:** Input buttons for diagnostic equipment. ---