The **RA-05-R-T** belongs to a specific category of electromechanical components, typically identified as a **Right-Angle (RA) Tactile Switch**. These components are fundamental in electronics for providing user input and tactile feedback. --- ### 1. Component Overview The RA-05-R-T is a momentary push-button switch designed for PCB (Printed Circuit Board) mounting. The "Right-Angle" designation means the actuator is oriented parallel to the board, allowing for side-access button placement on a device enclosure. ### 2. Technical Specifications The typical electrical and mechanical characteristics are summarized in the table below: | Feature | Specification (Typical) | | :--- | :--- | | **Switch Type** | Momentary (Normally Open) | | **Mounting Type** | Through-Hole (Right-Angle) | | **Current Rating** | 50mA | | **Voltage Rating** | 12V DC | | **Contact Resistance** | < 100mΩ | | **Operating Force** | 160gf to 250gf (Commonly 160gf) | | **Travel Distance** | 0.25mm ± 0.1mm | | **Life Cycle** | 100,000+ Cycles | --- ### 3. Key Electronic Parts & Construction The internal and external architecture consists of several critical materials: 1. **The Actuator (Button):** Usually made of high-temperature plastic (PBT or Nylon). This is the part the user presses. 2. **The Cover/Bracket:** A metal plate (often stainless steel or brass with tin plating) that holds the internal components together and provides the "Right-Angle" structural support. 3. **The Contact Dome:** A snap-acting metal disc. This is the heart of the switch; when pressed, it collapses to bridge the circuit and provides the "click" sound and feel. 4. **Terminal Leads:** Conductive pins (Silver or Gold plated) that are soldered into the PCB. The "T" in the part number often refers to "Taped" or specific terminal plating styles. 5. **Base:** A molded plastic housing that contains the stationary contacts. ### 4. Common Applications Due to its small footprint and side-actuation, the RA-05-R-T is frequently found in: * **Consumer Electronics:** Volume buttons on tablets or handheld devices. * **Industrial Controls:** Reset buttons on recessed panels. * **Computer Peripherals:** Side buttons on mice or power switches on external hard drives. * **Medical Devices:** Compact interface controls. --- ### 5. Circuit Symbol In a schematic diagram, the RA-05-R-T is represented as a simple normally open (NO) switch: ```text / -----/ ----- (NO) ```