The **W-A13-R** is a specific electronic component primarily categorized as a **Sub-miniature Rocker Switch**. These switches are designed for PCB (Printed Circuit Board) mounting and are commonly used in telecommunications, instrumentation, and medical equipment where space is a premium. --- ### Technical Specifications Below is a breakdown of the typical technical parameters for the W-A13-R series: | Feature | Specification | | :--- | :--- | | **Switch Function** | SPDT (Single Pole Double Throw) | | **Operation** | ON-ON (Latching) | | **Current Rating** | 3A @ 125VAC or 28VDC; 1.5A @ 250VAC | | **Contact Resistance** | 20 mΩ max. initial | | **Insulation Resistance** | 1,000 MΩ min. | | **Dielectric Strength** | 1,000 Vrms at sea level | | **Operating Temp** | -30°C to +85°C | | **Mounting Type** | Through-hole (Right Angle / Vertical) | --- ### Key Components and Materials The "R" in the part number usually signifies a specific orientation or a RoHS compliance standard. The physical construction includes: 1. **Actuator (Rocker):** Made of Nylon (UL94V-0), available in various colors (typically black, red, or white). 2. **Housing:** Stainless steel or diallyl phthalate (DAP) high-temperature plastic. 3. **Contacts:** Gold-plated or silver-plated copper alloy. * *Silver:* Best for higher power applications. * *Gold:* Best for low-level (dry circuit) switching to prevent oxidation. 4. **Terminals:** Epoxy sealed to prevent contamination during soldering. --- ### Terminal Pin Configuration As a **SPDT** switch, the W-A13-R generally features three pins: ```text Pin 1: Terminal A (Output 1) Pin 2: Common (Input) Pin 3: Terminal B (Output 2) Switch Position: Left: Pin 2 connected to Pin 3 Right: Pin 2 connected to Pin 1 ``` --- ### Applications * **Networking:** Reset switches or mode toggles for routers and hubs. * **Handheld Devices:** Power on/off controls. * **Industrial Controls:** Panel-mounted mini controllers. * **Test Equipment:** Logic probes and signal generators.