The term **2MAB-R** typically refers to a specific series or part number within the domain of **electromechanical switches**, most commonly associated with **Sub-Miniature Pushbutton Switches**. Manufacturers like Dailywell or similar electronic component suppliers use this nomenclature for their heavy-duty or industrial-grade miniature switches. --- ### 1. Key Technical Specifications The "2MAB" series usually defines the base model (Sub-miniature pushbutton), while the "R" suffix often denotes the specific termination style (such as Right Angle) or RoHS compliance, depending on the manufacturer's datasheet. | Characteristic | Typical Value / Detail | | :--- | :--- | | **Switch Type** | Pushbutton (Momentary or Alternate) | | **Contact Rating** | 3A @ 125VAC or 1.5A @ 250VAC | | **Contact Resistance** | 20 mΩ max. initial | | **Insulation Resistance** | 1,000 MΩ min. | | **Dielectric Strength** | 1,000 Vrms at sea level | | **Operating Temperature** | -30°C to 85°C | --- ### 2. Physical Construction The parts are designed for durability and precision in tight spaces. * **Case & Bushing:** Usually made of glass-filled nylon (6/6), flame retardant, and heat stabilized (UL94V-0). * **Plunger:** Thermoplastic polyester or metal, depending on the specific model. * **Contacts:** Often silver-plated (for power) or gold-plated (for low-level logic signals). * **Terminals:** Copper alloy, typically with silver or gold plating. --- ### 3. Application Use Cases These components are widely integrated into various electronic systems due to their small footprint and tactile feedback. 1. **Telecommunications:** Used for reset buttons or mode toggles in networking gear. 2. **Instrumentation:** Integrated into handheld multimeters or testing equipment. 3. **Medical Equipment:** Control panels for diagnostic devices. 4. **Audio/Visual:** Signal routing or power switching in professional audio mixers. --- ### 4. Part Number Breakdown (Generic Example) While coding varies by brand, the 2MAB-R generally follows this logic: ```text 2M - A - B - R | | | | Series | Mount RoHS/Right Angle Function (SPDT/DPDT) ```