Based on the part number provided, this refers to a specific configuration of a **rotary switch** typically manufactured by companies like **NKK Switches** or **C&K**. The "M2" series generally identifies the product line, while the suffixes denote the circuit configuration and mounting style. --- ### 1. General Specifications The **M2RT-00-R/K** is a miniature, PC-board mounted rotary switch designed for high reliability in small signal applications. | Feature | Specification Details | | :--- | :--- | | **Component Type** | Rotary Switch (Subminiature) | | **Circuitry** | DPDT (Double Pole Double Throw) or Multiple Position | | **Contact Material** | Usually Gold-plated (for low signal integrity) | | **Mounting Type** | Through-hole PC Mount | | **Actuator Style** | Screwdriver Slot or Knurled Shaft (depending on R/K suffix) | --- ### 2. Part Number Breakdown The suffixing identifies the exact mechanical and electrical behavior: * **M2**: The series designation (Micro-miniature Rotary). * **RT**: Indicates a "Rotary" action with "Through-hole" terminals. * **00**: Often indicates a standard base configuration or a specific number of positions (e.g., 2-position or continuous). * **R**: Generally signifies the **Actuator Type** (e.g., Raised/Knurled shaft). * **K**: Often indicates the **Terminal/Bracket** type or a specific locking mechanism. --- ### 3. Electrical Characteristics These switches are primarily used for logic-level switching rather than power distribution. | Parameter | Value (Typical) | | :--- | :--- | | **Max Voltage** | 28V DC / 125V AC | | **Max Current** | 100mA to 250mA | | **Contact Resistance** | < 20 mΩ | | **Insulation Resistance** | > 1,000 MΩ at 500V DC | | **Life Expectancy** | 10,000 to 30,000 Cycles | --- ### 4. Common Applications Due to its small footprint and PCB compatibility, this part is commonly found in: * **Telecommunications:** Mode selection for networking hardware. * **Industrial Controls:** Setting parameters on a control board. * **Medical Equipment:** Internal configuration switches not intended for the end-user. * **Test & Measurement:** Channel selection in handheld devices. --- ### 5. Schematic Representation The switch usually functions as a selector. Below is a simplified representation of a 2-position rotary logic: ```text Position 1: (Common A -> Pin 1) | (Common B -> Pin 3) Position 2: (Common A -> Pin 2) | (Common B -> Pin 4) ```