The **M2TT-45-R** is a high-performance, double-pole double-throw (DPDT) miniature toggle switch, commonly manufactured by **NKK Switches**. It belongs to the M2 series, which is known for its reliability and durability in industrial and commercial electronic applications. --- ### ## Technical Specifications Below are the primary electrical and mechanical characteristics of the M2TT-45-R: | Feature | Specification | | :--- | :--- | | **Switch Configuration** | DPDT (Double Pole Double Throw) | | **Circuitry** | ON - ON | | **Current Rating (AC)** | 6A @ 125V AC / 3A @ 250V AC | | **Current Rating (DC)** | 4A @ 30V DC | | **Mounting Type** | PC Board (Through-Hole) / Bracket Mount | | **Actuator Style** | Standard Bat Lever | | **Terminal Type** | PC Terminals with Bracket | | **Contact Plating** | Silver (standard) | --- ### ### Key Components and Construction The M2TT-45-R is engineered with several specialized parts that contribute to its performance: 1. **Antirotation Design:** The internal construction prevents the toggle lever from rotating, which protects the internal contacts from mechanical stress during operation. 2. **High Torque Bushing:** The bushing is designed to withstand high installation torque, preventing the switch from loosening or breaking during assembly. 3. **Ultrasonic Welding:** The base and housing are often joined using ultrasonic welding to provide a seal against contaminants and ensure structural integrity. 4. **Epoxy Sealed Terminals:** The terminals are typically sealed with epoxy to prevent solder flux or other contaminants from entering the switch mechanism during the soldering process. --- ### ### Typical Applications Due to its robust design and "ON-ON" switching logic, this part is frequently used in: * **Industrial Control Panels:** For toggling between two operational modes. * **Telecommunications:** Signal routing and equipment configuration. * **Medical Equipment:** High-reliability user interfaces. * **Test & Measurement:** Switching between different input channels or ranges. ---