The **KMMLS-B31-R** is a specific model of a **Miniature Slide Switch** commonly used in consumer electronics, instrumentation, and control panels. These components are designed for low-power signal switching in space-constrained environments. --- ## 1. Technical Specifications Below is a breakdown of the typical electronic and mechanical characteristics for this part: | Parameter | Specification | | :--- | :--- | | **Switch Type** | Slide Switch | | **Configuration** | SPDT (Single Pole Double Throw) | | **Current Rating** | ~0.3A (300mA) at 6V DC (Typical) | | **Contact Resistance** | < 50mΩ | | **Insulation Resistance** | > 100MΩ at 500V DC | | **Mounting Type** | Right Angle, Through-Hole (PCB) | | **Actuator Height** | Approx. 2mm - 4mm (depending on specific sub-series) | --- ## 2. Pinout and Internal Logic The KMMLS-B31-R generally features three pins. The "SPDT" configuration means it routes a single input to one of two possible outputs. ### Circuit Diagram Representation ```text [ 2 ] <-- Common (C) / \ [ 1 ] [ 3 ] <-- Terminals (L/R) ``` * **Position Left:** Connects Pin 2 to Pin 1. * **Position Right:** Connects Pin 2 to Pin 3. --- ## 3. Key Electronic Features * **Right-Angle Orientation:** The "R" in the suffix typically denotes a right-angle mount. This allows the switch to be operated from the side of a device (edge-mounting), which is ideal for handheld gadgets. * **Wiping Contact Mechanism:** These switches use a sliding contact that "wipes" the surface, helping to clear away minor oxidation and ensuring a reliable electrical connection over time. * **Miniaturization:** Designed for high-density PCB layouts where vertical space is limited. --- ## 4. Common Applications 1. **Power Selection:** Switching between battery power and USB power. 2. **Mode Selection:** Toggling between "On/Off" or "Auto/Manual" modes in small sensors. 3. **Consumer Electronics:** Used in toys, remote controls, and DIY microcontroller projects (like Arduino/ESP32 shields). ---