Based on the provided part number, **ALV-A13-R**, this typically identifies a specific type of **Miniature Pushbutton Switch** or an **Indicator Component**, often associated with manufacturers like *Nidec Copal Electronics* or similar industrial hardware suppliers. Below is a breakdown of its electronic and physical characteristics. ### 1. Technical Specifications Table | Feature | Description | | :--- | :--- | | **Component Type** | Illuminated Pushbutton Switch / Indicator | | **Mounting Type** | Panel Mount (typically 12mm or 16mm diameter) | | **Circuit Configuration** | SPST (Single Pole Single Throw) or DPST | | **Contact Rating** | Usually low voltage (e.g., 0.1A at 30V DC) | | **Illumination** | Integrated LED | | **Color Code (R)** | Red (Indicated by the suffix "-R") | | **Termination** | Solder Lug or PCB Pins | --- ### 2. Key Electronic Parts & Construction The device consists of several critical sub-components that manage the electrical signal and the visual feedback: * **The Actuator:** The physical button pressed by the user. In the "A13" series, this is often a square or round plunger made of translucent polycarbonate to allow light transmission. * **The LED Module:** The "-R" suffix specifies a **Red LED**. This is a separate electrical circuit from the switch contacts, allowing the light to be controlled independently (e.g., always on, or only on when the circuit is closed). * **Contact Mechanism:** Usually features gold-plated or silver-plated contacts to ensure low contact resistance and prevent oxidation over time. * **Internal Resistor:** Depending on the specific sub-model, some versions include a built-in current-limiting resistor for the LED, while others require an external resistor to prevent LED burnout. ### 3. Pin Configuration (Typical) In most ALV series switches, you will find 4 to 6 pins: 1. **Switch Contacts (2-4 pins):** These open or close the main circuit. 2. **LED Anode (+):** Power input for the red light. 3. **LED Cathode (-):** Ground for the red light. --- ### 4. Applications * **Control Panels:** Used as status indicators (Ready/Error). * **Test Equipment:** For triggering specific diagnostic cycles. * **Industrial Automation:** Emergency stop signals or manual override inputs.