The **TS-2B1-R** is a specific model of a **Tactile Switch**. These components are momentary push-button switches commonly used in interface panels, consumer electronics, and industrial controls. Below is a detailed breakdown of its electronic and mechanical parts. ### 1. General Specifications The TS-2B1-R belongs to the category of miniature PCB-mount switches. Its primary function is to complete an electrical circuit only when the button is physically pressed. | Feature | Specification (Typical) | | :--- | :--- | | **Switch Type** | Momentary (Normally Open) | | **Mounting Type** | Through-Hole (THT) | | **Actuation Force** | 160gf to 250gf (varies by sub-model) | | **Contact Rating** | 50mA @ 12V DC | | **Contact Resistance** | < 100 mΩ | | **Insulation Resistance** | > 100 MΩ | --- ### 2. Internal Electronic Parts The switch is comprised of four main physical/electronic segments: * **Actuator (Stem):** The top part that the user presses. In the "R" variant, this is often a specific height or color (red is common for "R" designations in some brands). * **Contact Dome (The Heart):** A small, concave metal disc. When pressed, it collapses to connect the terminals. This provides the "click" sound and tactile feedback. * **Terminals (Pins):** Usually 4 pins. Internally, these are connected in pairs. When the dome collapses, it bridges the gap between the stationary contacts and the terminals. * **Base (Housing):** Made of heat-resistant plastic (typically LCP or PBT) to withstand soldering temperatures. --- ### 3. Pin Configuration Tactile switches like the TS-2B1-R usually feature a **4-pin layout**. Internally, pins are connected as follows: | Pin Pair | Function | | :--- | :--- | | **1 & 2** | Internally connected | | **3 & 4** | Internally connected | | **1/2 to 3/4** | Connection made only when button is pressed | --- ### 4. Common Applications * **User Interface:** Volume buttons, reset switches, and power toggles. * **Computing:** Keyboards and mouse buttons. * **Industrial:** Control panels for machinery. ---