The **M2TT-8B-R2/BL** is a specific model of a miniature toggle switch manufactured by **Nidec Components** (formerly Copal Electronics). It belongs to the M2 series, which is designed for high reliability and versatility in electronic circuits. ### 1. Technical Specifications Below are the primary electronic and mechanical characteristics: | Parameter | Specification | | :--- | :--- | | **Contact Configuration** | DPDT (Double Pole Double Throw) | | **Switching Function** | ON - ON | | **Current Rating** | 6A @ 125VAC / 3A @ 250VAC / 4A @ 30VDC | | **Contact Resistance** | 10 mΩ maximum | | **Insulation Resistance** | 1,000 MΩ minimum | | **Dielectric Strength** | 1,500V AC for 1 minute | | **Actuator Type** | Standard Toggle | | **Termination Style** | PC Pin (Right Angle / Horizontal) | --- ### 2. Key Features and Construction The "R2/BL" suffix typically denotes specific mounting orientations and color/material options: * **Compact Design:** The M2 series is known for its small footprint, making it ideal for high-density PCB layouts. * **Sealed Structure:** These switches often feature an ultrasonic welding structure that prevents flux entry during the soldering process. * **Mounting Orientation:** The **R2** indicates a right-angle (horizontal) PC board mount. This means the actuator moves parallel to the circuit board, which is common for edge-mounted controls. * **Contact Material:** Usually features silver-plated or gold-plated contacts to ensure low electrical resistance and long life cycles. --- ### 3. Pinout and Circuit Logic As a **DPDT** switch, it has six terminals. It controls two separate circuits simultaneously, toggling between two states: ```text Position 1: Pole A (Pin 2) connected to Pin 1 Pole B (Pin 5) connected to Pin 4 Position 2: Pole A (Pin 2) connected to Pin 3 Pole B (Pin 5) connected to Pin 6 ``` --- ### 4. Common Applications * **Industrial Equipment:** Control panels and mode selection. * **Instrumentation:** Signal switching in measurement devices. * **Telecommunications:** Power routing or bypass switching in rack equipment. * **Medical Electronics:** User interface controls for handheld devices.