The **CH-T23-R** is a specific electronic component, typically categorized as a **Surface Mount Device (SMD) Tactile Switch**. These components are widely used in consumer electronics, industrial controls, and peripheral devices to provide user input through a physical "click" or tactile response. --- ### 1. Key Technical Specifications The following table outlines the typical physical and electrical characteristics of the CH-T23-R series: | Feature | Specification | | :--- | :--- | | **Component Type** | Tactile Switch (Push Button) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Actuation Type** | Top Actuated | | **Contact Arrangement** | SPST (Single Pole Single Throw) | | **Current Rating** | 50mA @ 12V DC (Typical) | | **Contact Resistance** | ≤ 100mΩ | | **Operating Force** | 160gf to 250gf (Depending on sub-model) | | **Travel distance** | 0.25mm ± 0.1mm | --- ### 2. Physical Construction The "R" in the part number often signifies a **Reel** packaging for automated assembly, but the internal construction consists of four main parts: 1. **Cover:** Usually a metal plate (stainless steel) that holds the internal components in place. 2. **Plunger/Stem:** The plastic part you press down. In the T23 series, this is usually a low-profile stem. 3. **Contact Dome:** A snap-action metal disc that provides the "tactile" feel and completes the circuit when depressed. 4. **Base:** A high-temperature plastic (LCP or Nylon) base that houses the terminals for soldering to the PCB. --- ### 3. Footprint and Wiring The switch is normally open (NO). When the button is pressed, the internal dome connects the input and output pins. ```text [ Top View Diagram ] _______ (1)| |(2) <-- Terminals | O | <-- Actuator (3)|_______|(4) Wiring Logic: Pin 1 & 2 are connected internally. Pin 3 & 4 are connected internally. Pressing the button connects (1,2) to (3,4). ``` --- ### 4. Common Applications * **Consumer Electronics:** Remote controls, digital cameras, and handheld gaming devices. * **Computer Peripherals:** Keyboards, mouse side-buttons, and printer control panels. * **Wearables:** Smartwatches or fitness trackers (due to the small SMD footprint). * **Reset Buttons:** Often used as a reset switch on Arduino or Raspberry Pi shields. ---