The **FNS-36-R** is a specific electronic component typically identified as a **tactile pushbutton switch**. These parts are widely used in consumer electronics, automotive controls, and industrial interfaces due to their compact size and reliable feedback. Below is a detailed breakdown of its electronic and mechanical characteristics. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Component Type** | Tactile Switch (Momentary) | | **Mounting Type** | Surface Mount (SMT/SMD) or Through-Hole (depending on variant) | | **Current Rating** | Typically 50mA | | **Voltage Rating** | 12V DC | | **Contact Resistance** | < 100 mΩ | | **Insulation Resistance** | > 100 MΩ | | **Operating Force** | 160gf to 250gf (grams-force) | | **Travel Distance** | 0.25mm ± 0.1mm | --- ### 2. Functional Components The FNS-36-R consists of several internal parts that work together to complete a circuit: 1. **The Actuator (Stem):** The physical button that the user presses. In the "36-R" series, this is often a round, low-profile stem. 2. **The Cover/Frame:** A metal or plastic housing that keeps the internal components aligned and provides structural integrity. 3. **The Contact Dome:** A snap-action metal disc. When pressed, it collapses to bridge the contacts and provides the "click" sound and tactile feel. 4. **Terminal Pins:** The conductive leads (usually silver or gold-plated) that connect the switch to the Printed Circuit Board (PCB). 5. **The Base:** An insulating plastic mold that holds the terminals and the dome in place. --- ### 3. Common Applications Due to its robust design and small footprint, the FNS-36-R is found in: * **User Interfaces:** Volume buttons on tablets or smartphones. * **Household Appliances:** Control panels on microwaves or washing machines. * **Computer Peripherals:** Reset buttons or mode selectors. * **Automotive:** Steering wheel controls or dashboard buttons. --- ### 4. Circuit Diagram Representation In an electronic schematic, the FNS-36-R is represented as a **Normally Open (NO)** momentary switch. ```text / (Switch) ----o/ o---- (In) (Out) ``` *When the actuator is pressed, the circuit is closed (ON). When released, the dome springs back, and the circuit returns to the open state (OFF).* ---