The **M2UDS-154-R/N** belongs to a series of industrial-grade micro-switches or detection switches, typically manufactured by companies like **Nidec Copal Electronics**. These components are specifically designed for high-reliability detection in compact electronic assemblies. --- ### 1. Component Overview The "M2UDS" series is characterized by its ultra-miniature size and surface-mount (SMD) compatibility. The part number breaks down into specific technical attributes: | Feature | Specification | | :--- | :--- | | **Type** | Detection Switch (Micro-switch) | | **Mounting Style** | SMD (Surface Mount Device) | | **Actuator Type** | Lever / Roller Lever (depending on the 'R' suffix) | | **Contact Configuration** | SPDT (Single Pole Double Throw) or SPST | | **Size** | Ultra-miniature / Low profile | --- ### 2. Key Electronic Specifications The electronic performance of these parts is optimized for signal-level switching rather than power distribution. * **Switching Capacity:** Usually rated for low current (e.g., 100mA at 30VDC). * **Contact Resistance:** Typically low (under 100mΩ) to ensure signal integrity. * **Insulation Resistance:** High (100MΩ minimum) to prevent leakage between terminals. * **Mechanical Life:** Designed for high durability, often exceeding 50,000 to 100,000 cycles. --- ### 3. Terminal and Mechanical Configuration The **R/N** suffix often denotes the orientation or the physical layout of the terminals and the actuator: * **R (Right-angled/Right):** Refers to the physical orientation of the actuator or the direction the terminals exit the body. * **N (Normal/Neutral):** Refers to the standard contact state (often Normally Open or a specific mounting alignment). ### 4. Common Applications Due to their small footprint, these parts are found in: 1. **Consumer Electronics:** Detecting the opening/closing of camera lenses or battery covers. 2. **Industrial:** Limit sensing in small robotic arms or precision machinery. 3. **Automotive:** Detecting the position of interior small-scale mechanical parts (latches, knobs). --- ### 5. Footprint Example (Generic SMD Switch) While specific to the datasheet, the layout generally follows this structure: ```markdown [ Actuator ] +-------------+ | | (1) |---[Body]---| (2) <-- Solder Pads | | +-------------+ ```