The **KURE-41MA-R** is a specific electronic component, typically categorized as a **Surface Mount Device (SMD) Tactile Switch**. These components are widely used in consumer electronics, automotive controls, and industrial interfaces to provide a physical "click" feedback when pressed. Below is a breakdown of its technical specifications, construction, and typical applications. --- ### 1. Technical Specifications The following table highlights the general electrical and mechanical characteristics associated with the KURE-41 series switches. | Feature | Specification | | :--- | :--- | | **Switch Type** | Tactile / Momentary Push Button | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Actuation Force** | Typically 1.6N to 2.5N (standard "click" feel) | | **Contact Rating** | 50mA, 12V DC (typical) | | **Operating Life** | 100,000 to 500,000 cycles | | **Travel Distance** | ~0.25mm | | **Operating Temperature** | -25°C to +70°C | --- ### 2. Physical Construction The "R" suffix often indicates specific packaging (like **Tape & Reel**) for automated assembly or a specific orientation of the terminals. * **Housing:** High-temperature thermoplastic (designed to withstand reflow soldering). * **Contact Dome:** Usually made of stainless steel with silver or gold plating to ensure high conductivity and a crisp tactile response. * **Terminals:** J-bend or Gull-wing leads designed for SMT PCB mounting. * **Actuator:** A small circular button (stem) that transfers the finger pressure to the internal dome. --- ### 3. Circuit Configuration This part is a **Single Pole Single Throw (SPST)**, Normally Open (NO) switch. ```text [Terminal A] ----/ ---- [Terminal B] (Switch Open) ``` When the button is pressed, the metal dome collapses, making a bridge between the input and output terminals, completing the circuit. --- ### 4. Common Applications Due to its small footprint and reliability, the KURE-41MA-R is found in: 1. **Consumer Electronics:** Power buttons on cameras, volume keys on tablets. 2. **Peripherals:** Computer mice, keyboards, and remote-control units. 3. **Automotive:** Dashboard buttons, key fobs, and steering wheel controls. 4. **Medical Devices:** Control panels for portable diagnostic tools. --- ### 5. Footprint and Soldering * **Land Pattern:** Requires a specific copper pad layout on the PCB to ensure mechanical stability. * **Reflow Soldering:** Designed to withstand standard Lead-Free reflow profiles (approx. 260°C peak).