The **KWTS-42D-R** is a specific model of a **Miniature Toggle Switch**, commonly used in electronic circuits for power control or signal switching. It belongs to a category of compact, panel-mounted mechanical switches. --- ### 1. Technical Specifications Below are the typical electronic and mechanical characteristics of the KWTS-42D-R: | Feature | Specification | | :--- | :--- | | **Switch Type** | Toggle Switch | | **Circuitry** | 4PDT (Four Pole Double Throw) | | **Positions** | 2-Position (ON-ON) | | **Current Rating** | ~6A @ 125VAC / 3A @ 250VAC | | **Contact Resistance** | < 20 mΩ (initial) | | **Insulation Resistance** | > 1000 MΩ @ 500VDC | | **Dielectric Strength** | 1500 VAC for 1 minute | | **Operating Life** | ~20,000 to 50,000 cycles | | **Terminal Type** | Solder Lug | --- ### 2. Breakdown of the Model Name The nomenclature usually follows this structure in industrial switching components: * **KWTS:** Series identifier (Manufacturer specific series for miniature toggles). * **4:** Number of Poles. In this case, it is **4-Pole**, meaning it can control four separate circuits simultaneously. * **2:** Number of Positions. This indicates it is a **Double Throw** (ON-ON) switch. * **D:** Often refers to the terminal style or specific physical housing size. * **R:** Usually denotes the actuator type (e.g., Round lever) or compliance (e.g., RoHS). --- ### 3. Pin Configuration (4PDT) Since this is a **4PDT** switch, it has **12 terminals** on the bottom. It acts like four separate switches controlled by a single physical lever. ```text [1] [4] [7] [10] <- Output A (Position 1) [2] [5] [8] [11] <- Common Pins [3] [6] [9] [12] <- Output B (Position 2) ``` * When the lever is in **Position 1**, the Common pins (2, 5, 8, 11) connect to the top pins (1, 4, 7, 10). * When the lever is in **Position 2**, the Common pins connect to the bottom pins (3, 6, 9, 12). --- ### 4. Common Applications * **Industrial Controls:** Switching between different operating modes in machinery. * **Audio Equipment:** Routing multiple signals or switching between different speaker/input banks. * **Test Equipment:** Manual polarity reversal or multi-rail power switching. * **DIY Electronics:** Used in projects requiring the simultaneous switching of multiple independent power lines.