The **KUS-13-R** is a specific electronic component, typically classified as a **Sealed Ultra-Miniature Pushbutton Switch**. It is widely used in PCB (Printed Circuit Board) designs where space is limited and protection against environmental factors (like dust or moisture) is required. --- ### 1. Technical Specifications The following table summarizes the key electrical and physical characteristics of the KUS-13-R: | Parameter | Specification | | :--- | :--- | | **Switch Type** | Pushbutton (Tactile) | | **Circuit** | SPST (Single Pole Single Throw) | | **Switch Function** | Off-Mom (Momentary / Normally Open) | | **Current Rating** | ~50mA to 100mA (Typical) | | **Voltage Rating** | 12V DC to 24V DC | | **Mounting Type** | Through-Hole (THT) or SMD (depending on variant) | | **Ingress Protection** | IP67 (Dust tight and Water immersion) | | **Contact Material** | Gold or Silver plated | --- ### 2. Key Features * **Ultra-Miniature Size:** Its compact footprint allows for high-density mounting on control panels or handheld devices. * **Sealed Construction:** The "Sealed" designation means the internal contacts are protected by a rubber boot or epoxy seal, making it suitable for soldering processes (wave soldering) and harsh environments. * **Tactile Feedback:** Provides a distinct "click" feel to the user, confirming that the circuit has been closed. * **Long Life Cycle:** Designed for high reliability, often rated for 100,000 to 500,000 actuations. --- ### 3. Pin Configuration and Circuitry The KUS-13-R operates as a simple **Normally Open (NO)** switch. ```mermaid graph LR A[Terminal 1] ---|Switch Open| B[Terminal 2] Note right of A: Pressing the button closes the circuit. ``` When the actuator is pressed, the internal metal dome collapses to connect the two terminals, allowing current to flow. Once released, the spring mechanism returns the actuator to its original position, breaking the connection. --- ### 4. Common Applications Due to its durability and small size, it is commonly found in: 1. **Consumer Electronics:** Reset buttons on routers, cameras, and wearable tech. 2. **Industrial Equipment:** Control interfaces and limit switches. 3. **Medical Devices:** Portable diagnostic tools where sterilization or moisture resistance is necessary. 4. **Automotive:** Dashboard controls and key fobs.