The **W2TS-4A3-R** is a specific electronic component, typically classified as a **Miniature Toggle Switch**. These components are widely used in industrial control panels, telecommunications, and instrumentation due to their reliability and compact form factor. --- ## Technical Specifications The following table outlines the primary electrical and mechanical characteristics of the W2TS-4A3-R: | Parameter | Specification | |:---|:---| | **Switch Type** | Toggle Switch | | **Circuitry** | SPDT (Single Pole Double Throw) | | **Switch Function** | ON-OFF-ON (Three positions) | | **Current Rating** | Typically 5A @ 125VAC or 2A @ 250VAC | | **Contact Resistance** | 10 mΩ max. (initial) | | **Insulation Resistance** | 1,000 MΩ min. | | **Dielectric Strength** | 1,500 VAC for 1 minute | | **Mounting Type** | Through-hole (PCB Mount) or Panel Mount | | **Terminal Material** | Silver or Gold-plated Brass | --- ## Component Breakdown ### 1. Actuator (The Toggle) The "W2" series often features a standard-length lever. The actuator is the physical handle used to toggle between the three states: * **Position 1:** Connection between Common and Terminal A. * **Center Position:** Open circuit (OFF). * **Position 2:** Connection between Common and Terminal B. ### 2. Internal Mechanism The switch utilizes a **butt-contact mechanism**. When the toggle is moved, an internal spring-loaded plunger forces a movable contact onto the stationary terminals. The "4A3" designation usually refers to the specific terminal pitch or spacing suitable for high-density PCB layouts. ### 3. Housing and Materials * **Body:** High-temperature Diallyl Phthalate (DAP) or similar thermoset plastic to withstand soldering heat. * **Sealing:** The "-R" suffix often indicates **RoHS Compliance**, meaning the part is manufactured without hazardous substances like lead or cadmium. --- ## Common Applications * **Signal Switching:** Routing low-level audio or data signals. * **Mode Selection:** Switching between different operating modes in industrial machinery. * **Power Control:** Acting as a main power toggle for small electronic devices.