The **KWMS-5F-R** is an electronic component primarily classified as a **microswitch** (specifically a subminiature snap-action switch). These are commonly used in computer peripherals, industrial controls, and small household appliances. --- ### 1. Technical Specifications Below are the typical electrical and mechanical parameters for the KWMS series: | Parameter | Specification | | :--- | :--- | | **Type** | Subminiature Snap-Action Switch | | **Circuit Configuration** | SPDT (Single Pole Double Throw) | | **Current Rating** | 5A | | **Voltage Rating** | 125V / 250V AC | | **Operating Force** | 1.47N (approx. 150gf) | | **Contact Material** | Silver Alloy | | **Terminal Type** | PCB Terminals (Right Angled or Straight depending on suffix) | | **Mechanical Life** | 1,000,000 Cycles | --- ### 2. Physical Design & Construction The switch is designed for high reliability in a compact footprint. * **Housing:** High-temperature resistant thermoplastic (usually PBT or Phenolic). * **Actuator:** A small plunger (button) that requires minimal travel distance to trigger the internal spring mechanism. * **Internal Mechanism:** Uses a "Snap-Action" spring. This ensures that the contacts move rapidly from one position to another regardless of the speed at which the external actuator is pressed, preventing electrical arcing. * **Terminals:** The "R" in the suffix often denotes **Right-Angle PCB terminals**, making it suitable for side-mounting on circuit boards. --- ### 3. Pinout Configuration As an SPDT switch, the KWMS-5F-R typically features three pins: 1. **COM (Common):** The input terminal. 2. **NC (Normally Closed):** Connected to COM when the switch is at rest. 3. **NO (Normally Open):** Connected to COM only when the switch is pressed. --- ### 4. Common Applications * **Computer Mice:** Used for left/right click buttons (though high-force 5A versions are more common in industrial mice). * **Safety Interlocks:** Detecting if a door or panel is closed in a printer or microwave. * **Limit Switches:** Used in CNC machines or 3D printers to define the "Home" or "End" position of an axis. * **Power Switches:** Low-power on/off toggles for handheld electronics.