The **AS4V-S13A-R** is a specific electronic component belonging to the category of **Surface Mount Device (SMD) Tactile Switches**. These parts are essential in user interface design, providing physical feedback (a "click") when pressed. --- ### 1. Key Technical Specifications The following table outlines the electrical and physical characteristics of this component: | Feature | Specification | | :--- | :--- | | **Component Type** | Tactile Switch | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Actuation Force** | Typically 160gf to 250gf (Standard tactile feel) | | **Circuit Configuration** | SPST (Single Pole Single Throw) | | **Switch Function** | Momentary (Normally Open) | | **Termination Style** | Gull-wing or J-bend leads | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | --- ### 2. Physical Design and Dimensions The "S13A" suffix usually refers to the specific height and orientation of the actuator. * **Size:** These switches are generally compact (around 4mm x 4mm or 6mm x 6mm footprints). * **Sealing:** The "-R" suffix often indicates "Tape and Reel" packaging, but in some manufacturer catalogs, it can also signify a **washable/sealed** design (IP67) to protect against dust and moisture during soldering. * **Actuator:** Features a soft or hard stem depending on the specific model variation, designed for high durability (often rated for 100,000+ cycles). --- ### 3. Electronic Functionality As a **SPST Normally Open** switch, the internal mechanism works as follows: 1. **Idle State:** The circuit is open; no current flows. 2. **Actuated State:** When the user applies pressure to the stem, a metal dome inside collapses, making contact with the base terminals. 3. **Feedback:** The collapse of the dome provides tactile "snap" feedback to the user. 4. **Release:** The dome springs back to its original shape, breaking the circuit. --- ### 4. Common Applications Due to its small footprint and reliability, the AS4V-S13A-R is commonly found in: * **Consumer Electronics:** Power buttons on cameras, tablets, and headphones. * **Industrial:** Interface panels for PLC controllers. * **Automotive:** Steering wheel controls and dashboard buttons. * **Medical Devices:** Portable diagnostic equipment. ---