The **KSP-13-R** is a specific model of a **Miniature Pushbutton Switch**. It is widely used in electronic devices for momentary power control or signal triggering due to its compact size and reliability. ### 1. Technical Specifications The electrical and mechanical properties of the KSP-13-R are summarized in the table below: | Feature | Specification | | :--- | :--- | | **Switch Type** | Momentary Pushbutton | | **Contact Configuration** | SPST (Single Pole Single Throw) | | **Circuit State** | Normally Open (OFF-ON) | | **Voltage Rating** | 125V AC / 250V AC | | **Current Rating** | 1A to 3A (depending on manufacturer) | | **Mounting Type** | Panel Mount (Threaded) | | **Termination** | Solder Lugs / Terminals | --- ### 2. Key Electronic Components & Materials The internal and external construction of the switch involves several critical parts: * **Actuator (Button):** Usually made of high-grade plastic (often red or black). It is the interface the user presses to close the circuit. * **Internal Spring:** A precision-engineered metal spring that provides the "momentary" action, pushing the button back to the "Open" position once released. * **Contact Plates:** Typically made of copper alloy with **silver plating**. Silver is used to ensure low contact resistance and prevent oxidation. * **Housing/Body:** Constructed from phenolic resin or nylon, providing high insulation resistance to prevent electrical leakage between the terminals and the panel. --- ### 3. Connection Diagram The KSP-13-R is a two-terminal device. In a standard electronic circuit, it acts as a gatekeeper: ```text [Power Source (+)] ---- [Terminal 1] (Switch) [Terminal 2] ---- [Load/Microcontroller] ---- [GND] ``` * **Logic Level:** When used with microcontrollers (like Arduino), it typically requires a **pull-up or pull-down resistor** to prevent floating inputs. * **Power Switching:** When used in AC circuits, it is strictly for low-power applications (under 3A). --- ### 4. Common Applications * **Reset Buttons:** For computers or industrial control panels. * **User Input:** Simple "Start" or "Trigger" functions in DIY electronics. * **Testing Equipment:** Used as a momentary pulse generator in lab environments.