The **LTPE-11-R** is a specific electronic component belonging to the **Tactile Switch** family. It is a surface-mount (SMD) momentary push-button switch designed for compact electronic devices where space is at a premium. --- ### ## Technical Specifications Below are the primary electronic and mechanical characteristics typically associated with the LTPE-11-R series: | Parameter | Specification | | :--- | :--- | | **Switch Type** | Tactile (Momentary) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Actuator Type** | Standard Round Button | | **Operating Force** | ~160 gf to 250 gf (model dependent) | | **Contact Rating** | 50mA @ 12V DC | | **Contact Resistance** | 100 mΩ Max | | **Insulation Resistance** | 100 MΩ Min @ 100V DC | | **Dielectric Strength** | 250V AC for 1 minute | | **Travel** | 0.25mm ± 0.1mm | --- ### ### Key Internal Components The LTPE-11-R consists of several critical layers that define its electronic behavior: 1. **Contact Dome (The Heart):** A stainless steel or copper alloy disc. When pressed, it collapses to complete the circuit between the terminals. This provides the "click" feeling (tactile feedback). 2. **Base (Housing):** Usually made of high-temperature thermoplastic (like LCP) to withstand reflow soldering temperatures. 3. **Terminals:** Silver-plated brass or copper. These are the leads that are soldered onto the PCB. 4. **Cover/Frame:** A metal shield that holds the actuator and dome in place, often providing structural integrity. --- ### ### Typical Applications Due to its small footprint and reliable tactile response, this part is commonly found in: * **Consumer Electronics:** Wearables, remote controls, and digital cameras. * **Telecommunications:** Mobile phones and handheld radios. * **Industrial:** Interface panels and reset buttons on embedded modules. --- ### ### Wiring Diagram Logic In its simplest form, the LTPE-11-R acts as a **Single Pole Single Throw (SPST)** Normally Open switch. ```text Terminal 1 (A) ----/ ---- Terminal 2 (B) (Open when idle) ```