The **M2TT-NF-R2/BL** is a specific part number for a sub-miniature toggle switch manufactured by **NKK Switches**. This component is designed for logic-level applications and is commonly used in telecommunications, medical equipment, and networking devices. --- ### ## Technical Specifications The following table outlines the core electronic and mechanical characteristics of the M2TT-NF-R2/BL: | Characteristic | Specification | | :--- | :--- | | **Manufacturer** | NKK Switches | | **Series** | M2 Series (Process Sealed) | | **Switch Function** | DPDT (Double Pole Double Throw) | | **Operation** | ON - ON | | **Contact Rating** | 0.4VA Max @ 28V AC/DC (Logic Level) | | **Termination Style** | Straight PC Terminals with Bracket | | **Actuator Style** | Small Bat Toggle | | **Bushing** | Non-threaded | | **Sealing** | IP67 (Process Sealed) | | **Color** | Black (BL) | --- ### ## Key Electronic Features ### 1. Logic Level Reliability Unlike standard power switches, this model is specifically engineered for **0.4VA maximum at 28V AC/DC**. It utilizes gold-plated contacts to ensure high reliability in low-energy circuits where oxide buildup on standard silver contacts would cause failure. ### 2. DPDT Configuration The **Double Pole Double Throw** configuration means the switch controls two separate circuits simultaneously, with two possible "ON" positions for each pole. This is ideal for switching between two different signal paths or reversing polarity. ### 3. Process Sealed Construction The "NF" designation indicates that the device is fully sealed. - **Automated Soldering:** It can withstand wave soldering. - **Cleaning:** The internal contacts are protected against flux, solvents, and environmental contaminants during the PCB cleaning process. ### 4. Mounting Design The **R2** suffix denotes the mounting hardware, specifically a **Straight PC mount with a support bracket**. This provides mechanical stability when soldered onto a PCB, preventing the solder joints from cracking under the stress of toggling. --- ### ## Applications - **Handheld Devices:** Due to its sub-miniature size. - **Medical Instrumentation:** Where high reliability and sealing are required. - **Control Panels:** Used for mode selection in industrial computers. - **Audio/Video Equipment:** Switching low-voltage signals without noise interference.