The **47LPT-162B-R** is a specific electronic component typically identified as a **tactile switch** (or tact switch). These are momentary push-button switches commonly used in low-power interface circuits. Below is a detailed breakdown of its specifications, physical characteristics, and typical applications. ### 1. Component Overview The "47L" series often refers to miniature, surface-mount (SMT) tactile switches designed for high-density PCB layouts. The suffix "R" usually indicates that the part is supplied on **Tape and Reel** for automated pick-and-place assembly. --- ### 2. Technical Specifications The following table summarizes the typical electrical and mechanical properties of this class of switch: | Feature | Specification (Typical) | | :--- | :--- | | **Switch Type** | Momentary Tactile | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Circuit** | SPST - NO (Single Pole Single Throw - Normally Open) | | **Current Rating** | 50mA | | **Voltage Rating** | 12V DC | | **Contact Resistance** | < 100 mΩ | | **Operating Force** | 160gf (Grams-force) | | **Travel Distance** | 0.25mm ± 0.1mm | | **Durability** | 100,000 to 1,000,000 cycles | --- ### 3. Key Physical Features * **Low Profile:** The "LPT" designation usually signifies a low-profile design, making it suitable for slim devices like smartphones or wearable tech. * **Actuator Type:** Usually a flush or short stem to prevent accidental triggering and to fit under thin plastic membranes or keycaps. * **Sealing:** Many parts in this series are IP67 rated (dust-tight and water-resistant), though this should be verified against the specific manufacturer datasheet (e.g., Grayhill or CTS). --- ### 4. Typical Applications These switches are found in devices where space is at a premium and a "clicky" tactile feedback is required: 1. **Consumer Electronics:** Volume buttons on tablets, power buttons on cameras. 2. **Medical Devices:** Handheld diagnostic tools and portable monitors. 3. **Industrial:** Miniature reset buttons on internal PCBs. 4. **Automotive:** Key fobs and interior console controls. --- ### 5. Circuit Implementation The switch is used to "close" a circuit when pressed. Below is a simple representation of how it is integrated into a microcontroller (MCU) circuit using a pull-up resistor: ```cpp // Logic Diagram // [VCC] --- [Pull-up Resistor] --- [MCU Input Pin] // | // [47LPT-162B-R] // | // [GND] ```