The **KFS-52-R** is an electronic component primarily classified as a **Tactile Switch** (or Push Button Switch). These switches are widely used in consumer electronics, automotive controls, and industrial interfaces due to their tactile feedback and compact footprint. ### 1. Technical Specifications The following table outlines the typical electrical and physical parameters for the KFS-52-R series: | Feature | Specification | | :--- | :--- | | **Switch Type** | Momentary Tactile Switch | | **Contact Arrangement** | SPST-NO (Single Pole Single Throw - Normally Open) | | **Rated Voltage** | DC 12V (Typical) | | **Rated Current** | 50mA | | **Contact Resistance** | ≤ 100mΩ | | **Insulation Resistance** | ≥ 100MΩ (100V DC) | | **Dielectric Strength** | 250V AC for 1 minute | | **Operating Force** | 160gf to 250gf (Commonly 1.6N - 2.5N) | | **Travel (Stroke)** | 0.25mm ± 0.1mm | --- ### 2. Physical Construction The "KFS-52-R" designation usually refers to a specific form factor, often involving a **Right-Angle (R)** mounting style. 1. **Actuator (Button):** Usually made of hard plastic (POM or PPA), this is the part the user presses. 2. **Cover/Frame:** Often stainless steel or tin-plated brass to provide structural integrity and grounding. 3. **Contact Dome:** A precision-engineered metal alloy dome that provides the "click" feel and completes the circuit when depressed. 4. **Base:** A high-temperature resistant thermoplastic (LCP or Nylon) that holds the terminals. 5. **Terminals:** Copper alloy with silver or gold plating for high conductivity and solderability. --- ### 3. Pinout and Mounting The KFS-52-R is designed for **Through-Hole Technology (THT)**. * **Right-Angle Configuration:** The pins are bent at a 90-degree angle. This allows the switch to be mounted on the edge of a PCB so the button protrudes from the side of a device casing. * **Pin Logic:** Typically has 2 or 4 pins. In 4-pin versions, pins are usually connected in pairs internally to provide better mechanical stability on the board. --- ### 4. Common Applications * **Consumer Electronics:** Volume buttons on speakers, power buttons on monitors. * **Peripherals:** Reset buttons on routers or printers. * **Appliances:** Control panels for microwave ovens or air conditioners. * **Industrial:** Logic input triggers for PLC interfaces.