The **SWT6-R4KTR** is a specific electronic component belonging to the category of **Tactile Switches**. These are momentary push-button switches commonly used in low-current applications to provide user input to a microcontroller or circuit. Below is a detailed breakdown of its technical specifications and characteristics. --- ### 1. General Specifications The SWT6 series is characterized by its compact "6x6mm" footprint, which is an industry standard for tactile switches. | Parameter | Specification | | :--- | :--- | | **Switch Type** | Tactile (Momentary) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Dimensions** | 6.0mm x 6.0mm | | **Actuation Force** | Typically 160gf (Grams-force) | | **Contact Arrangement** | SPST-NO (Single Pole Single Throw - Normally Open) | | **Packaging** | Tape & Reel (indicated by "TR") | --- ### 2. Key Features * **Tactile Feedback:** Provides a distinct "click" sensation when pressed, letting the user know the connection has been made. * **Durability:** Usually rated for 100,000 to 500,000 cycles, depending on the specific sub-variant. * **Reflow Solder Compatible:** Designed to withstand the high temperatures of automated SMT assembly lines. * **Low Profile:** The "R4" in the part number often refers to the specific height of the actuator (plunger), typically around 4.3mm or 5.0mm depending on the manufacturer's datasheet. --- ### 3. Electrical Characteristics These switches are intended for signal-level switching, not for direct power control of heavy loads. | Feature | Rating | | :--- | :--- | | **Contact Rating** | 50mA @ 12V DC | | **Insulation Resistance** | 100MΩ min. at 100V DC | | **Dielectric Strength** | 250V AC for 1 minute | | **Contact Resistance** | 100mΩ max. (Initial) | --- ### 4. Typical Applications The SWT6-R4KTR is widely used in consumer electronics due to its small size and reliability: * **Computer Peripherals:** Reset buttons, power buttons on monitors. * **Consumer Appliances:** Microwave control panels, coffee machine interfaces. * **Industrial:** Logic input for PLC interfaces or handheld testing equipment. * **DIY Electronics:** Commonly used on Arduino/Raspberry Pi "Shields" or custom PCBs. --- ### 5. Internal Circuit Diagram The switch is a simple "Normally Open" bridge. When the plunger is pressed, it connects the input pins to the output pins. ```text Terminals 1 & 2 (Connected Internally) | +-----o-----+ | | <-- Actuator (Push to Close) +-----o-----+ | Terminals 3 & 4 (Connected Internally) ```