The **M2TT-13-R2** is a specialized electronic component, typically identified as a **tactile switch** or a specific **miniature toggle/pushbutton switch** assembly often used in industrial or automotive interfaces. Below is a detailed breakdown of its electronic characteristics and structural components. ### 1. Component Specifications The "M2" series generally refers to sub-miniature designs. Here are the typical electrical parameters for this class of component: | Parameter | Specification (Typical) | | :--- | :--- | | **Switch Type** | Tactile / Miniature Toggle | | **Contact Rating** | 0.4VA Max @ 28V AC/DC (Logic Level) | | **Contact Resistance** | < 50 mΩ | | **Insulation Resistance** | > 500 MΩ @ 500V DC | | **Dielectric Strength** | 500V AC for 1 minute | | **Operating Temperature** | -30°C to +85°C | --- ### 2. Key Electronic Parts & Construction #### A. Internal Contact Mechanism * **Gold-Plated Contacts:** Most "R2" suffix parts indicate gold over nickel plating. This is crucial for **Logic Level** circuits where voltage and current are too low to "burn off" oxidation. * **Bifurcated Contacts:** The internal wipers often use a dual-contact design to ensure high reliability and minimize contact bounce. #### B. The Housing (Body) * **Material:** High-temperature Liquid Crystal Polymer (LCP) or Polyphenylene Sulfide (PPS). * **Function:** Provides high thermal resistance, allowing the part to withstand lead-free reflow soldering processes. #### C. Terminals (The Pins) * **Pitch:** Usually follows a standard 2.54mm (0.1") or 2.0mm grid spacing. * **Sealing:** The terminals are typically epoxy-sealed at the base to prevent flux or contaminants from entering the switch cavity during soldering. --- ### 3. Circuit Configuration The M2TT-13-R2 usually follows an **SPDT (Single Pole Double Throw)** configuration. ```mermaid graph LR A[Terminal 2 - Common] --- B(ON) A --- C(ON) style A fill:#f9f,stroke:#333,stroke-width:2px ``` * **Function:** ON-OFF-ON or ON-NONE-ON depending on the specific sub-variant. * **Mounting:** The "R2" often denotes a specific packaging (like Tape & Reel) or a Right-Angle PC mount orientation. --- ### 4. Typical Applications 1. **Handheld Devices:** Due to the sub-miniature footprint. 2. **Reset Switches:** Used on PCBs for microcontrollers. 3. **Mode Selection:** Selecting between different hardware logic states.