The **M2BS2-041-R** is a high-performance, ultra-compact **micro-switch** (specifically a Sub-miniature Pushbutton Switch) manufactured by **Nidec Components** (formerly Copal Electronics). It is widely used in industrial and consumer electronics where space is at a premium. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and mechanical characteristics: | Property | Specification | | :--- | :--- | | **Switch Type** | Pushbutton (Sub-miniature) | | **Circuit Configuration** | SPDT (Single Pole Double Throw) | | **Switching Function** | On - (On) / Momentary | | **Current Rating** | 0.05A @ 48V AC/DC (Logic Level) | | **Contact Resistance** | 100 mΩ maximum | | **Dielectric Strength** | 250V AC for 1 minute | | **Insulation Resistance** | 500 MΩ minimum | | **Mechanical Life** | 30,000 cycles | | **Operating Force** | 1.47 ± 0.98 N | --- ### 2. Physical Construction The "R" suffix in the part number often denotes specific packaging or terminal styles. Here is the breakdown of the electronic parts involved in its construction: * **Contacts:** Usually gold-plated over nickel. This ensures high reliability for low-current (logic level) switching by preventing oxidation. * **Terminals:** PC Pin (Through-hole) mounting. They are designed for direct soldering onto a Printed Circuit Board (PCB). * **Actuator:** A small plunger designed for manual interface or integration into a button cap system. * **Housing:** High-temperature plastic (PPS or similar) designed to withstand wave soldering temperatures. --- ### 3. Application and Usage Because the M2BS2-041-R is a **Momentary** switch, it only completes the circuit while it is being physically pressed. Common use cases include: 1. **Reset Switches:** Used on internal PCBs for system resets. 2. **Mode Selection:** Small tactile inputs for portable medical devices. 3. **Test Equipment:** Logic-level signal switching in handheld multimeters or oscilloscopes. 4. **Peripheral Input:** Functional buttons on high-end computer peripherals or industrial controllers. --- ### 4. Circuit Diagram (SPDT) The internal electronic logic follows a standard SPDT path: ```text [Common] ----/ ---- [Normally Closed] | +--------- [Normally Open] (Connected when pressed) ```