The **W2TS-3B2-R/K** is a specific model within the series of high-precision, waterproof tactile switches, commonly manufactured by electronic component specialists like **Diptronics** or similar industrial switch suppliers. Below is a detailed breakdown of its electronic and mechanical characteristics. --- ## 1. Technical Specifications The part number indicates a specific configuration regarding terminal style, actuation force, and packaging. | Feature | Specification (Typical for W2TS series) | | :--- | :--- | | **Switch Type** | Tactile Switch (Momentary) | | **Contact Arrangement** | SPST (Single Pole, Single Throw) | | **Circuitry** | Normally Open (NO) | | **Current Rating** | 50mA | | **Voltage Rating** | 12V DC | | **Dielectric Strength** | 250V AC for 1 minute | | **Contact Resistance** | 100mΩ Max | | **Insulation Resistance** | 100MΩ Min at 500V DC | | **Operating Temperature** | -40°C to +85°C | --- ## 2. Key Part Number Breakdown While manufacturer codes vary slightly, the "W2TS" series generally follows this logic: * **W2TS:** **Waterproof** Tactile Switch (typically IP67 rated). * **3B2:** Represents the physical dimensions (3.0mm x 2.0mm or 3.9mm x 2.9mm depending on the sub-series) and the stem height. * **R:** Refers to the **Actuation Force**. In this series, 'R' usually denotes a standard force (e.g., 160gf or 240gf). * **K:** Refers to the **Stem/Button Color** (often Black) or specific plating/material requirements. --- ## 3. Physical & Mechanical Properties These switches are designed for compact electronic devices where space and environmental protection are critical. ### Features 1. **IP67 Rating:** The "W" prefix indicates the switch is sealed against dust and immersion in water (up to 1m for 30 minutes). 2. **SMD/SMT Mounting:** The "3B2" configuration is designed for Surface Mount Technology, allowing for automated pick-and-place assembly. 3. **Haptic Feedback:** Provides a distinct "click" sensation, which is essential for user confirmation in small interfaces. 4. **Long Life Cycle:** Typically rated for 100,000 to 500,000 cycles depending on the specific actuation force. --- ## 4. Typical Applications Due to its small footprint and waterproof nature, this component is found in: * **Wearables:** Smartwatches and fitness trackers. * **Mobile Devices:** Smartphones (power/volume buttons). * **Medical Electronics:** Handheld diagnostic tools that require sterilization or cleaning. * **IoT Sensors:** Outdoor or industrial monitoring devices. ---