The **APTE-6111-R** is a specific electronic component primarily categorized as a **Tactile Switch**. These components are widely used in consumer electronics, industrial controls, and PC peripherals to provide user input through a physical "click" sensation. --- ### 1. Technical Specifications Below are the primary electronic and mechanical characteristics of the APTE-6111-R: | Parameter | Specification | | :--- | :--- | | **Switch Type** | Tactile / Momentary | | **Mounting Type** | Surface Mount Device (SMD/SMT) | | **Actuator Style** | Round Button | | **Contact Rating** | 50mA @ 12VDC | | **Operating Force** | 160gf (Grams-force) ± 50gf | | **Travel Distance** | 0.25mm ± 0.1mm | | **Contact Resistance** | 100 mΩ Max | | **Operating Temperature** | -25°C to +70°C | --- ### 2. Physical Construction The part is designed for high-density PCB layouts. Key physical features include: * **Terminals:** Usually features "Gull-wing" or J-lead terminals for surface mounting. * **Base Material:** High-temperature thermoplastic (usually LCP or Nylon) to withstand reflow soldering temperatures. * **Contact Material:** Stainless steel or copper alloy with silver plating for high conductivity and corrosion resistance. --- ### 3. Circuit Configuration The APTE-6111-R follows a standard **SPST-NO (Single Pole Single Throw - Normally Open)** configuration: 1. **Resting State:** The circuit is open; no current flows. 2. **Actuated State:** When the button is pressed, the internal metal dome collapses, connecting the two terminals and closing the circuit. 3. **Release State:** The internal dome springs back (providing the tactile feedback), and the circuit returns to an open state. ### 4. Typical Applications Due to its small footprint and reliable tactile response, this part is found in: * **Consumer Electronics:** Remote controls, cameras, and handheld gaming devices. * **Computing:** Mouse buttons, reset switches on motherboards. * **Industrial:** Interface panels and instrumentation. --- ### 5. Footprint Example In a PCB design environment (like Altium, KiCad, or Eagle), the footprint typically appears as follows: ```text [ Terminal 1 ] ---- ( Internal Dome ) ---- [ Terminal 2 ] | | (Pad A) (Pad B) ```