The **10TK-110-R** is a specific electronic component, typically identified as a **tactile switch** (or tact switch) manufactured by companies like **HRO (Hanrongparts)** or similar specialist switch manufacturers. These are ubiquitous in consumer electronics for providing user input. --- ## 1. Technical Specifications The "10TK" series generally refers to the physical dimensions and mounting style. Below are the typical technical parameters for this part: | Parameter | Specification | | :--- | :--- | | **Component Type** | Tactile Switch (Momentary) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Dimensions** | 3.0mm x 2.0mm (Approximate) | | **Operating Force** | 160gf to 240gf (grams-force) | | **Voltage Rating** | 12V DC | | **Current Rating** | 50mA | | **Life Cycle** | 100,000 to 500,000 cycles | | **Travel** | 0.15mm - 0.25mm | --- ## 2. Key Features * **Momentary Action:** The circuit is only closed while the button is being physically pressed. Once released, the connection opens. * **Tactile Feedback:** Provides a distinct "click" feel to the user, confirming the button has been successfully actuated. * **Low Profile:** Designed for compact devices where vertical space is limited (e.g., smartphones, wearables). * **Side-Actuated vs. Top-Actuated:** Depending on the specific suffix, these switches are often designed for "side-push" applications to fit on the edge of a PCB. --- ## 3. Common Applications Due to its small footprint and durability, the 10TK-110-R is found in: 1. **Mobile Devices:** Power buttons, volume rockers, and reset buttons. 2. **Wearables:** Smartwatches and fitness trackers. 3. **Consumer Electronics:** Remote controls, digital cameras, and TWS (True Wireless Stereo) earbud cases. 4. **Medical Handhelds:** Portable diagnostic tools. --- ## 4. Internal Construction The switch consists of four primary parts: * **Cover:** A metal or plastic shield that protects the internal mechanism. * **Plunger/Actuator:** The part the user presses. * **Contact Dome:** A tiny metal disc that snaps down to complete the circuit and provides the tactile "click." * **Base:** Holds the terminals and provides the structural housing for the switch.