The **KS2-A15-R** is a specific electronic component, most commonly identified as a **tactile switch** or a **push-button switch** used in mechanical keyboards and control panels. Below is a detailed breakdown of its technical specifications and physical composition. --- ### 1. General Specifications The KS2-A15-R belongs to a category of electromechanical components designed for low-power signal switching. | Feature | Description | | :--- | :--- | | **Component Type** | Tactile Push Button Switch | | **Circuitry** | SPST (Single Pole Single Throw) | | **Mounting Type** | Through-hole (THT) or Surface Mount (SMT) depending on sub-series | | **Operating Force** | Typically 160gf to 250gf | | **Feedback** | Tactile (Clicky or Soft-bump) | --- ### 2. Internal Electronic Parts The functionality of the KS2-A15-R relies on several internal physical layers: * **Actuator (The Stem):** The part the user presses. In the "R" designation, this often refers to a specific height or color coding (Red). * **Contact Dome:** A metallic dome (usually stainless steel or copper alloy) that collapses when pressed to complete the circuit. * **Terminals/Pins:** Conductive metal legs (usually silver or gold plated) that exit the base to be soldered onto a PCB. * **Base/Housing:** Typically made of heat-resistant thermoplastic (LCP or PBT) to withstand soldering temperatures. --- ### 3. Electrical Characteristics These are the critical limits for the component's operation: | Parameter | Value | | :--- | :--- | | **Voltage Rating** | 12V DC (Standard) | | **Current Rating** | 50mA | | **Contact Resistance** | ≤ 100mΩ | | **Insulation Resistance** | ≥ 100MΩ at 100V DC | | **Dielectric Strength** | 250V AC for 1 minute | --- ### 4. Common Applications The KS2-A15-R is frequently found in: 1. **Consumer Electronics:** Volume buttons, power switches on appliances. 2. **Peripherals:** Mechanical keyboard resets or specialized macro keys. 3. **Industrial:** Reset switches on PLC modules and interface panels. --- ### 5. Part Number Decoding While specific to the manufacturer (often associated with brands like Kingley or generic switch manufacturers), the code generally breaks down as follows: * **KS2:** Series identifier (Tactile switch family). * **A15:** Specific physical dimensions or actuator height (e.g., 1.5mm or 15mm). * **R:** Usually denotes **Red** color or **RoHS** compliance.