Based on the technical specifications for the **M2REB-SA2-R2/UL**, this part is a high-precision, sub-miniature toggle switch manufactured by **NKK Switches**. It is designed for logic-level applications, typically used in medical, telecommunications, and industrial handheld devices. ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Contact Configuration** | DPDT (Double Pole, Double Throw) | | **Switch Function** | ON-ON (Maintained) | | **Current/Voltage Rating** | 0.4VA maximum @ 28V AC/DC maximum | | **Terminal Type** | Right Angle PC Mount (0.100" Pitch) | | **Bushing Type** | Unthreaded (Smooth) | | **Actuator Style** | Standard Bat Lever | | **Safety Standard** | UL Recognized (E44145) | --- ### 2. Electronic Characteristics & Materials The "M2" series is specifically engineered for reliability in low-energy circuits. * **Logic Level Logic:** The gold-plated contacts ensure a stable connection even at very low voltages/currents, preventing the oxidation that occurs on silver contacts in similar environments. * **Sealed Construction:** The device features an ultrasonic welding process on the housing and an epoxy seal at the terminals to prevent the entry of flux, solvents, and other contaminants during soldering. * **Mechanical Life:** Designed for a minimum of 100,000 operations. * **Dielectric Strength:** 1,000V AC minimum between contacts for at least one minute. --- ### 3. Physical Layout (PCB Footprint) The "SA2" designation refers to the specific orientation of the terminals. ```text Terminal spacing: - Between poles: 2.54mm (0.100") - Between throws: 2.54mm (0.100") ``` The **Right Angle (R2)** mounting allows the switch to be mounted on a horizontal PCB while the actuator protrudes through the side or front panel of the device housing. --- ### 4. Part Number Breakdown * **M2B**: Series (Subminiature Process Sealed Toggle) * **RE**: Gold Contacts / Logic Level * **S**: Smooth Bushing * **A2**: Right Angle PC Terminals * **R2**: Specific Actuator length/style * **UL**: Underwriters Laboratories certified for safety compliance.