The **47DM-1119-R** is a specific electronic component, primarily identified as a **tactile switch** (or tact switch) manufactured by companies like **Diptronics**. These are momentary push-button switches commonly used in low-current interface applications. --- ## 1. Technical Specifications The following table summarizes the key electrical and physical characteristics typical for this series: | Property | Specification | | :--- | :--- | | **Switch Type** | Tactile (Momentary) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Actuation Force** | Typically 160gf to 260gf (varies by sub-model) | | **Voltage Rating** | 12V DC | | **Current Rating** | 50mA | | **Contact Resistance** | 100 mΩ max | | **Operating Life** | 100,000 to 500,000 cycles | | **Stem Height** | Specific to the "1119" designation (often 1.5mm - 3.0mm) | --- ## 2. Key Features The 47DM series is designed for efficiency and durability in compact electronic devices. * **Miniature Footprint:** Its small size makes it ideal for high-density Printed Circuit Boards (PCBs). * **Tactile Feedback:** Provides a sharp, clear "click" sound and physical sensation when pressed, confirming actuation to the user. * **Reflow Solderable:** The "-R" suffix usually indicates that the part is provided in **Tape and Reel** packaging, suitable for automated pick-and-place assembly and high-temperature reflow soldering. * **Dust Protection:** Many variants in this series feature a sealed or semi-sealed construction to prevent contact contamination. --- ## 3. Common Applications Due to its reliability and small size, the 47DM-1119-R is frequently found in: 1. **Consumer Electronics:** Mobile phones, remote controls, and digital cameras. 2. **Wearables:** Smartwatches and fitness trackers. 3. **Computing:** Laptop power buttons or reset switches on motherboards. 4. **Industrial:** Handheld scanners and interface panels. --- ## 4. Part Number Breakdown (Typical) While naming conventions vary slightly by manufacturer, the code generally breaks down as follows: * **47DM:** The series identifier (Miniature SMT Tact Switch). * **1119:** Specific dimensions, stem height, or internal contact material. * **R:** Packaging type (Tape & Reel).